Here both the up and down indicators, and conditions.

ABCD up :

Name the indicator: AB=CD-up

 Sub New
  AutoLoop = False
  '# RangePattern = UserInput.Integer = 200
  '# NewLowPer = UserInput.Integer = 20
  '# PullBackPercent = UserInput.Single = 38.2
  '# EntryPercent = UserInput.Single = 23.6
  '#RECALC_ON_ZOOM_SCROLL
 End Sub
 Public Overrides Function Plot() As System.Single
  Dim Range(1) As Integer
  'Range(1) = price.Bar.count - 1
  Range(1) = Price.IndexForDate(ActiveChart.ZoomEndDate)
  Range(0) = Range(1) + 1 - RangePattern
  Dim BarA As Integer = Range(0)
  If Range(0) >= 0 Then
   For i As Integer = Range(0) To Range(1)
    If Price.Bar.LowValue(i) <= Price.Bar.LowValue(BarA) Then
     BarA = i
    End If
   Next
   If BarA - Range(0) < NewLowPer AndAlso BarA > 0 Then
    Dim Count As Integer = 0
    For i As Integer = BarA - 1 To 0 Step -1
     Count += 1
     If Price.Bar.LowValue(i) <= Price.Bar.LowValue(BarA) Then
      BarA = i
      Count = 0
     End If
     If Count >= NewLowPer Then
      Range(0) = BarA
      Exit For
     End If
    Next
   End If
   If BarA < Range(1) - 1 Then
    Dim ABretr As Single = Single.NaN
    Dim BarB As Integer = BarA
    Dim BarBqualified(1) As Integer
    BarBqualified(0) = BarA
    BarBqualified(1) = BarA
    Dim BarC As Integer = BarA
    Dim BarCQualified As Integer = BarA
    Dim L1 As Integer
    L1 = BarA
    For i As Integer = BarA + 1 To Range(1) - 1
     If Price.Bar.HighValue(i) > Price.Bar.HighValue(BarB) Then
      BarB = i
      BarC = BarB
      ABretr = PullBackPercent * (Price.Bar.HighValue(BarB) - Price.Bar.LowValue(BarA)) / 100
     End If
     If Price.Bar.lowValue(i) < Price.Bar.highValue(BarB) - ABretr AndAlso i > BarB AndAlso _
      price.Bar.lowvalue(i) < price.Bar.lowvalue(BarB) Then
      If BarC = BarB Then
       BarC = i
      Else If Price.Bar.LowValue(i) < Price.Bar.LowValue(BarC) Then
       BarC = i
      End If
      BarBqualified(0) = BarB
      If BarC > BarCqualified Then
       For j As Integer = i To Range(1) - 1
        If Price.Bar.lowValue(j) <= Price.Bar.lowValue(j - 1) AndAlso _
         Price.Bar.lowValue(j) <= Price.Bar.lowValue(j + 1) Then
         L1 = j
         BarCqualified = BarC
         BarBqualified(1) = BarBqualified(0)
         Exit For
        End If       
       Next
      End If
     End If
    Next
    If BarCqualified > BarA Then
     AddToOutput(Price.Bar.DateValue(BarA), Price.Bar.LowValue(BarA), "A")
     AddToOutput(Price.Bar.DateValue(BarBqualified(1)), Price.Bar.HighValue(BarBqualified(1)), "B")
     AddToOutput(Price.Bar.DateValue(BarCqualified), Price.Bar.LowValue(BarCqualified), "C")
     Dim k As Integer = L1 + 1
     If k <= Range(1) Then
      Dim entry As Single = Price.Bar.LowValue(BarCQualified)  
      Dim B As Single
      Dim retr As Single
      Dim projection As Single
      Dim steptrgt As Single = EntryPercent * (Price.Bar.HighValue(BarBqualified(1)) - Price.Bar.LowValue(BarA)) / 100
      Dim AB As Single = price.Bar.highvalue(barBqualified(1)) - price.Bar.lowvalue(BarA)
      Dim BC As Single = Price.Bar.HighValue(BarBqualified(1)) - price.Bar.lowvalue(BarCqualified)
      retr = 100 * BC / AB
      entry = entry + steptrgt
      B = entry + steptrgt
      
      AddToOutput(Price.Bar.DateValue(k), entry, "entry")
     
      k += 1
      Do Until Price.Bar.Value(k) > entry OrElse k > Range(1)
       AddToOutput(Price.Bar.DateValue(k), entry)
       k += 1
      Loop
      If Price.Bar.Value(k) > entry AndAlso k <= Range(1) Then
       Dim PRZlow As Single
       Dim PRZlowtxt As String
       Dim PRZhigh As Single
       Dim PRZhightxt As String
       Select Case retr
        Case <= 38.2
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 2.618
         PRZlowtxt = "261.8%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 2.618
         PRZhightxt = "261.8%BC"
        Case 38.2 To 50
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 2
         PRZlowtxt = "200%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 2.618
         PRZhightxt = "261.8%BC"
        Case 50 To 61.8
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.618
         PRZlowtxt = "161.8%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 2
         PRZhightxt = "200%BC"
        Case 61.8 To 70.7
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.41
         PRZlowtxt = "141%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 1.618
         PRZhightxt = "161.8%BC"
        Case 70.7 To 78.6
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.27
         PRZlowtxt = "127%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 1.41
         PRZhightxt = "141%BC"
        Case 78.6 To 88.6
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.13
         PRZlowtxt = "113%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 1.27
         PRZhightxt = "127%BC"
        Case 88.6 To 100
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.13
         PRZlowtxt = "113%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 1.13
         PRZhightxt = "113%BC"
       End Select
       AddToOutput(Price.Bar.DateValue(k), PRZlow, PRZlowtxt)
       k += 1
       Do Until Price.Bar.Value(k) > PRZlow OrElse k > Range(1)
        AddToOutput(Price.Bar.DateValue(k), PRZlow)
        k += 1
       Loop
       If Price.Bar.Value(k) > PRZlow AndAlso k <= Range(1) Then
        AddToOutput(Price.Bar.DateValue(k), PRZhigh, PRZhightxt)
        k += 1
        Do Until Price.Bar.Value(k) > PRZhigh OrElse k > Range(1)
         AddToOutput(Price.Bar.DateValue(k), PRZhigh)
         k += 1
        Loop
       End If
       
      End If
     End If
    End If
   End If
  End If       
  
 End Function
End Class

condition:

'#cumulative
'# ABCDup = chart.AB=CD-up

Static Av As Single
Static Bv As Single
Static ABCDBarCount As Integer
If isFirstBar Then
 Av = Single.NaN
 Bv = Single.NaN
 ABCDBarCount = 0
End If
If currentindex > price.count - 15 Then
 If Price.DateValue = ABCDup.DateValue Then
  ABCDBarCount += 1
  If ABCDBarCount = 2 Then
   Av = ABCDup.Value
   ' Else If ABCDBarCount >= 6 AndAlso _
   '  ABCDup.Value <> ABCDup.Value(1) Then
   '  Bv = ABCDup.Value
  End If
 End If
 If ABCDBarCount >= 2 Then
  If (Price.Value(1) < Av AndAlso Price.Value > Av) Then
   Pass
  End If
 End If
 
Else
 SetIndexInvalid
End If

ABCD down:

name the indicator : AB=CD-down

 Inherits RealCodeIndicator_base
 ' Mod ; 3/2/2013
 ' removed the level1 sequence. entry is plotted next bar after C is qualified,
 ' and being a high surrounded by 1 lower or equal high.
 ' added condition: Zhigh > Yhigh
 
 Sub New
  AutoLoop = False
  '# RangePattern = UserInput.Integer = 200
  '# NewHighPer = UserInput.Integer = 20
  '# PullbackPercent = UserInput.Single = 38.2
  '# EntryPercent = UserInput.Single = 23.6
  '#RECALC_ON_ZOOM_SCROLL
 End Sub
 Public Overrides Function Plot() As System.Single
  Dim Range(1) As Integer
  'Range(1) = price.Bar.count - 1
  Range(1) = Price.IndexForDate(ActiveChart.ZoomEndDate)
  Range(0) = Range(1) + 1 - RangePattern
  Dim BarA As Integer = Range(0)
  If Range(0) >= 0 Then
   For i As Integer = Range(0) To Range(1)
    If Price.Bar.HighValue(i) >= Price.Bar.HighValue(BarA) Then
     BarA = i
    End If
   Next
   If BarA - Range(0) < NewHighPer AndAlso BarA > 0 Then
    Dim Count As Integer = 0
    For i As Integer = BarA - 1 To 0 Step -1
     Count += 1
     If Price.Bar.HighValue(i) >= Price.Bar.HighValue(BarA) Then
      BarA = i
      Count = 0
     End If
     If Count >= NewHighPer Then
      Range(0) = BarA
      Exit For
     End If
    Next
   End If
   If BarA < Range(1) - 1 Then
    Dim ABretr As Single = Single.NaN
    Dim BarB As Integer = BarA
    Dim BarBqualified(1) As Integer
    BarBqualified(0) = BarA
    BarBqualified(1) = BarA
    Dim BarC As Integer = BarA
    Dim BarCQualified As Integer = BarA
    Dim L1 As Integer
    L1 = BarA
   
    For i As Integer = BarA + 1 To Range(1) - 1
     If Price.Bar.LowValue(i) < Price.Bar.LowValue(BarB) Then
      BarB = i
      BarC = BarB
      ABretr = PullbackPercent * (Price.Bar.HighValue(BarA) - Price.Bar.LowValue(BarB)) / 100
     End If
     If Price.Bar.highValue(i) > Price.Bar.lowValue(BarB) + ABretr AndAlso i > BarB AndAlso _
      price.Bar.highvalue(i) > price.Bar.highvalue(BarB) Then
      If BarC = BarB Then
       BarC = i
      Else If Price.Bar.HighValue(i) > Price.Bar.HighValue(BarC) Then
       BarC = i
      End If
      BarBqualified(0) = BarB
      If BarC > BarCqualified Then
      
       For j As Integer = i To Range(1) - 1
        If Price.Bar.highValue(j) >= Price.Bar.highValue(j - 1) AndAlso _
         Price.Bar.highValue(j) >= Price.Bar.highValue(j + 1) Then
         L1 = j
         BarCqualified = BarC
         BarBqualified(1) = BarBqualified(0)
         Exit For
        End If       
       Next
      End If
     End If
    Next
    If BarCqualified > BarBqualified(1) Then
     AddToOutput(Price.Bar.DateValue(BarA), Price.Bar.highValue(BarA), "A")
     AddToOutput(Price.Bar.DateValue(BarBqualified(1)), Price.Bar.lowValue(BarBqualified(1)), "B")
     AddToOutput(Price.Bar.DateValue(BarCqualified), Price.Bar.highValue(BarCqualified), "C")
     Dim k As Integer = L1 + 1
     If k <= range(1) Then
      Dim entry As Single = Price.bar.highvalue(barCQualified)
      Dim B As Single
      Dim retr As Single
      Dim steptrgt As Single = EntryPercent * (Price.Bar.HighValue(BarA) - Price.Bar.LowValue(BarBqualified(1))) / 100
      Dim AB As Single = price.Bar.highvalue(BarA) - price.Bar.lowvalue(BarBqualified(1))
      Dim BC As Single = Price.Bar.HighValue(BarCqualified) - price.Bar.lowvalue(BarBqualified(1))
      retr = 100 * BC / AB
      entry = entry - steptrgt
      B = entry - steptrgt
      AddToOutput(Price.Bar.DateValue(k), entry, "entry")
      k += 1
      Do Until Price.Bar.Value(k) < entry OrElse k > Range(1)
       AddToOutput(Price.Bar.DateValue(k), entry)
       k += 1
      Loop
  
      If Price.Bar.Value(k) < entry AndAlso k <= Range(1) Then
       Dim PRZlow As Single
       Dim PRZlowtxt As String
       Dim PRZhigh As Single
       Dim PRZhightxt As String
       Select Case retr
        Case <= 38.2
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 2.618
         PRZlowtxt = "261.8%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 2.618
         PRZhightxt = "261.8%BC"
        Case 38.2 To 50
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 2.618
         PRZlowtxt = "261.8%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 2
         PRZhightxt = "200%BC"
        Case 50 To 61.8
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 2
         PRZlowtxt = "200%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.618
         PRZhightxt = "161.8%BC"
        Case 61.8 To 70.7
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 1.618
         PRZlowtxt = "161.8%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.41
         PRZhightxt = "141%BC"
        Case 70.7 To 78.6
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 1.41
         PRZlowtxt = "141%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.27
         PRZhightxt = "127%BC"
        Case 78.6 To 88.6
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 1.27
         PRZlowtxt = "127%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.13
         PRZhightxt = "113%BC"
        Case 88.6 To 100
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 1.13
         PRZlowtxt = "113%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.13
         PRZhightxt = "113%BC"
       End Select
  
       AddToOutput(Price.Bar.DateValue(k), PRZhigh, PRZhightxt)
       k += 1
       Do Until Price.Bar.Value(k) < PRZhigh OrElse k > Range(1)
        AddToOutput(Price.Bar.DateValue(k), PRZhigh)
        k += 1
       Loop
       If Price.Bar.Value(k) < PRZhigh AndAlso k <= Range(1) Then
        AddToOutput(Price.Bar.DateValue(k), PRZlow, PRZlowtxt)
        k += 1
        Do Until Price.Bar.Value(k) < PRZlow OrElse k > Range(1)
         AddToOutput(Price.Bar.DateValue(k), PRZlow)
         k += 1
        Loop
       End If
      End If
     End If
    End If
   End If
  End If       
  

 End Function
End Class

condition:

'#cumulative
'# ABCDdown = chart.AB=CD-down

 Static Av As Single
Static Bv As Single
Static ABCDBarCount As Integer
If isFirstBar Then
 Av = Single.NaN
 Bv = Single.NaN
 ABCDBarCount = 0
End If
If currentindex > price.count - 15 Then
 If Price.DateValue = ABCDdown.DateValue Then
  ABCDBarCount += 1
  If ABCDBarCount = 2 Then
   Av = ABCDdown.Value
   'Else If ABCDBarCount >= 6 AndAlso _
   ' ABCDdown.Value <> ABCDdown.Value(1) Then
   ' Bv = ABCDdown.Value
  End If
 End If
 If ABCDBarCount >= 2 Then
  If (Price.Value(1) > Av AndAlso Price.Value < Av) Then Pass
  'OrElse (Price.Value(1) < Bv AndAlso Price.Value > Bv)
 End If
Else
 SetIndexInvalid
End If

Notes:

to use the conditions, make the following change in the indicators:

 'Range(1) = price.Bar.count - 1
Range(1) = Price.IndexForDate(ActiveChart.ZoomEndDate)

to :

Range(1) = price.Bar.count - 1
'Range(1) = Price.IndexForDate(ActiveChart.ZoomEndDate)

this turns of the "Zoom" capability, and will, regardless whether you slide your chart back and forth in time, only plot the most recent pattern.

the conditions return true, when either the "entry" level gets broken, or one of the targets, within the most recent 15 bars.

I made this limitation to reduce CPU load.

Before you use this indicator, make sure you fully understand how it works, and what it supposed to indicate.

I like to go long once the entry level gets broken on the ABCD-up indicator, or go long when price reverses out of the PRZ of a ABCD-down pattern, when larger timeframes are in an uptrend.

vice-versa for shorts.

The conditions seem to work well, although I suspect they're not 100%.

If you have any feedback, additions, modifications, please post.

That is some serious coding; no wonder my pathetic efforts fail so miserably.  Thanks for sharing- I look forward to checking it out this weekend.

LoL feltburner, but I'm just leeching of Bruce's knowledge, and tireless support. He deserves most of the credit.

Hope to get some feedbacks/recommendations here.

One Idea I have is to include some options to increase probability for a trade at either the PRZ or between the C and entry point, bylooking for maybe some candlestick formations, in those areas. or some divergences from other indicators.

Getting quite a few compile errors in each and can't run them quite yet. I'm sure it'll get worked out, likely my oversight. Thank you for sharing.

create new realcode indicator

then select "class"

copy the code under "inherits realcodeIndicator_base"

should look like this :

http://screencast.com/t/rZflUlS51

pthegreat,

Also had trouble getting the indicators to run but after reading your instructions and viewing your image I have the indicators working.  Is the code for the conditions entered into the "code" area or the "class" area?  Still haven't got them working yet.

Thanks,

Bruce

code

pthegreat,

Thanks again for sharing!  I was never a fan of fib but i am now.  There are compelling arguments for point C to be included as a condition, when use in conjunction with other indicators can confirm C.  Also I believe there are trading opportunities between point C and entry point.

Agilisllc.

Thanks, it's all up and running now.

I've tried to alter above code to include 423.6% with no luck, what i'm i doing wrong?

                       Select  Case retr

                                Case <= 26.4
                                    PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 4.236
                                    PRZlowtxt = "423.6%BC"
                                    PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 4.236
                                    PRZhightxt = "423.6%BC"
                                Case 26.4 To 38.2
                                    PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 2.618
                                    PRZlowtxt = "261.8%BC"
                                    PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 4.236
                                    PRZhightxt = "423.6%BC"

looks fine to me.

click on the indicator and change "PullbackPercent" to 23.6, so it will find patterns that have a pullback less then the default 38.2%

http://screencast.com/t/cGC4XA26u7

AB=CD, stops dawing at random points 127%, 141% etc ... almost never draws 261.8%, is anyone else having this issue? 

Agilisllc,

they are not random.

see page 41 "harmonic trading"

the drawn projections (PRZ) relate directly to the BC retrace of the AB leg.

I explained it in my 1st post in the other harmonic thread.

an example:

if BC is a retrace of AB between 61.8% and 70/7%, then I use the projection values 161.8 and 141% to determine the PRZ

If however, the retrace is between 38.2% and 50% then 200% and 261.8% will be used.

for example V on 15min chart

BC is between 38.2%  and 50% retrace of AB, therefore the 1st PRZ target is 200%BC.

when price fell below this line, it drew the 261.8%, that's your PRZ!

note: my indicator is a slight variant of the AB=CD as described in the book. since they also use the exact range of AB, to set a PRZ target.

again, this indicator, follows the definitions of AB=CD patterns only.

If you delve into the various harmonic patterns, you'll see that depending on the pattern, the projections of the AB=CD in the harmonic pattern will use different projections then the reciprocal ratios used, when you use the AB=CD indicator stand alone.

another example:

GS 60min chart:

XABCD paints a "Crab" pattern.

although the BC is about 78.6% retrace of AB, and therefore it should use a 127% and 141% projection of AB, the fact that it is part of a Crab pattern, a projection of between 224% to 361.8%  should be used.

here depicted using fibs in TC2000 :

As you see, so far it hit the 261.8% spot on, if fails we can look at 300%, up to 361.8%

However the Stockfinder AB=CD indicator only painted the PRZ relating to a 70.7% to 78.6% retrace, which are 127% and 141%

eventhough it is part of the crab pattern, and therefore larger projections should be used. the AB=CD's PRZ gave a good signal as well for a short bounce out of the PRZ.

Plan is to program the additional patterns, but just to busy with trading at the moment.

Just keep the forementioned in mind, hope it helps,

P.

sorry:

although the BC is about 78.6% retrace of AB, and therefore it should use a 127% and 141% projection of AB, the fact that it is part of a Crab pattern, a projection of between 224% to 361.8% should be used.

should read:

although the BC is about 78.6% retrace of AB, and therefore it should use a 127% and 141% projection of BC, the fact that it is part of a Crab pattern, a projection of between 224% to 361.8% should be used.

pthegreat

thanks for the clarification, I incorrectly assumed AB=CD would recalculate and project new fib levels as price history surpasses PRZ levels. It would be a great addition to the indicator, though i'm not sure its possible.

p.s AB=CD indicator has been spot on....

thx for the suggestion. I'm still breaking my head over how I will continue coding this out.

But adding the range of AB to predict CD is something I will add for sure.

SPY for example on 5min:  4/2 high to 4/3 low, subtract from 4/4 high, gave the exact low today, and eventhough after a big drop I did get some 154 weekly calls, which got a 150% return. stopped exactly at the 38.2% retrace of 4/4 high and 113% projection 4/3 low - 4/4high

the range AB, projected from point C always falls somewhere between the two fibs that calculate the PRZ.

in any case, hope to pick up with coding something soon.

take care. 

update:

added "D" target as range A-high to B-low subtracted from C-high (in case of down pattern), or range A-low to B-high added to C-low (in case of up pattern).

and added text to Cpoint with the exact retrace%

If you have the previous indicator on your chart, simply rightclick it, "edit realcode" then select "class",

and replace everything below "inherits RealCodeIndicator_base"  with the code below.

The AB=CD-down indicator, copy the following:

 ' Mod ; 3/2/2013
 ' removed the level1 sequence. entry is plotted next bar after C is qualified,
 ' and being a high surrounded by 1 lower or equal high.
 ' added condition: Chigh > Bhigh
 ' Mod ; 4/1/2013
 ' made "zooming" a userinput
 ' Mod ; 4/7/2013
 ' add retrace% to pointC
 ' add D projection as AB=CD range
 
 Sub New
  AutoLoop = False
  '# RangePattern = UserInput.Integer = 200
  '# NewHighPer = UserInput.Integer = 20
  '# PullbackPercent = UserInput.Single = 38.2
  '# EntryPercent = UserInput.Single = 23.6
  '# Zoom = userinput.integer = 0
  '#RECALC_ON_ZOOM_SCROLL
 End Sub
 Public Overrides Function Plot() As System.Single
  Dim Range(1) As Integer
  If Zoom = 0 Then
   Range(1) = price.Bar.count - 1
  Else
   Range(1) = Price.IndexForDate(ActiveChart.ZoomEndDate)
  End If
  Range(0) = Range(1) + 1 - RangePattern
  Dim BarA As Integer = Range(0)
  If Range(0) >= 0 Then
   For i As Integer = Range(0) To Range(1)
    If Price.Bar.HighValue(i) >= Price.Bar.HighValue(BarA) Then
     BarA = i
    End If
   Next
   If BarA - Range(0) < NewHighPer AndAlso BarA > 0 Then
    Dim Count As Integer = 0
    For i As Integer = BarA - 1 To 0 Step -1
     Count += 1
     If Price.Bar.HighValue(i) >= Price.Bar.HighValue(BarA) Then
      BarA = i
      Count = 0
     End If
     If Count >= NewHighPer Then
      Range(0) = BarA
      Exit For
     End If
    Next
   End If
   If BarA < Range(1) - 1 Then
    Dim ABretr As Single = Single.NaN
    Dim ABpercentRetr As Single
    Dim BarB As Integer = BarA
    Dim BarBqualified(1) As Integer
    BarBqualified(0) = BarA
    BarBqualified(1) = BarA
    Dim BarC As Integer = BarA
    Dim BarCQualified As Integer = BarA
    Dim Ctxt As String
    Dim L1 As Integer
    L1 = BarA
   
    For i As Integer = BarA + 1 To Range(1) - 1
     If Price.Bar.LowValue(i) < Price.Bar.LowValue(BarB) Then
      BarB = i
      BarC = BarB
      ABretr = PullbackPercent * (Price.Bar.HighValue(BarA) - Price.Bar.LowValue(BarB)) / 100
     End If
     If Price.Bar.highValue(i) > Price.Bar.lowValue(BarB) + ABretr AndAlso i > BarB AndAlso _
      price.Bar.highvalue(i) > price.Bar.highvalue(BarB) Then
      If BarC = BarB Then
       BarC = i
      Else If Price.Bar.HighValue(i) > Price.Bar.HighValue(BarC) Then
       BarC = i
      End If
      BarBqualified(0) = BarB
      If BarC > BarCqualified Then
         
       For j As Integer = i To Range(1) - 1
        If Price.Bar.highValue(j) >= Price.Bar.highValue(j - 1) AndAlso _
         Price.Bar.highValue(j) >= Price.Bar.highValue(j + 1) Then
         L1 = j
         BarCqualified = BarC
         BarBqualified(1) = BarBqualified(0)
         ABpercentRetr = (price.Bar.highvalue(BarCqualified) - price.Bar.lowvalue(BarBqualified(1))) / _
          (price.Bar.highvalue(BarA) - price.Bar.lowvalue(BarBqualified(1))) * 100
         Ctxt = "C=" & ABpercentRetr.ToString("N2") & "%"
         Exit For
        End If       
       Next
      End If
     End If
    Next
    If BarCqualified > BarBqualified(1) Then
     AddToOutput(Price.Bar.DateValue(BarA), Price.Bar.highValue(BarA), "A")
     AddToOutput(Price.Bar.DateValue(BarBqualified(1)), Price.Bar.lowValue(BarBqualified(1)), "B")
     AddToOutput(Price.Bar.DateValue(BarCqualified), Price.Bar.highValue(BarCqualified), Ctxt)
     Dim k As Integer = L1 + 1
     If k <= range(1) Then
      Dim entry As Single = Price.bar.highvalue(barCQualified)
      Dim B As Single
      Dim retr As Single
      Dim steptrgt As Single = EntryPercent * (Price.Bar.HighValue(BarA) - Price.Bar.LowValue(BarBqualified(1))) / 100
      Dim AB As Single = price.Bar.highvalue(BarA) - price.Bar.lowvalue(BarBqualified(1))
      Dim BC As Single = Price.Bar.HighValue(BarCqualified) - price.Bar.lowvalue(BarBqualified(1))
      retr = 100 * BC / AB
      entry = entry - steptrgt
      
      AddToOutput(Price.Bar.DateValue(k), entry, "entry")
      k += 1
      Do Until Price.Bar.Value(k) < entry OrElse k > Range(1)
       AddToOutput(Price.Bar.DateValue(k), entry)
       k += 1
      Loop
  
      If Price.Bar.Value(k) < entry AndAlso k <= Range(1) Then
       Dim PRZlow As Single
       Dim PRZlowtxt As String
       Dim PRZhigh As Single
       Dim PRZhightxt As String
       Dim D As Single
       D = price.Bar.Highvalue(BarCqualified) - (Price.Bar.HighValue(BarA) - Price.Bar.LowValue(BarBqualified(1)))
       Select Case retr
        Case <= 38.2
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 2.618
         PRZlowtxt = "261.8%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 2.618
         PRZhightxt = "261.8%BC"
        Case 38.2 To 50
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 2.618
         PRZlowtxt = "261.8%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 2
         PRZhightxt = "200%BC"
        Case 50 To 61.8
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 2
         PRZlowtxt = "200%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.618
         PRZhightxt = "161.8%BC"
        Case 61.8 To 70.7
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 1.618
         PRZlowtxt = "161.8%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.41
         PRZhightxt = "141%BC"
        Case 70.7 To 78.6
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 1.41
         PRZlowtxt = "141%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.27
         PRZhightxt = "127%BC"
        Case 78.6 To 88.6
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 1.27
         PRZlowtxt = "127%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.13
         PRZhightxt = "113%BC"
        Case 88.6 To 100
         PRZlow = price.Bar.Highvalue(BarCqualified) - BC * 1.13
         PRZlowtxt = "113%BC"
         PRZhigh = price.Bar.Highvalue(BarCqualified) - BC * 1.13
         PRZhightxt = "113%BC"
       End Select
  
       AddToOutput(Price.Bar.DateValue(k), PRZhigh, PRZhightxt)
       k += 1
       Do Until Price.Bar.Value(k) < PRZhigh OrElse k > Range(1)
        AddToOutput(Price.Bar.DateValue(k), PRZhigh)
        k += 1
       Loop
       If Price.Bar.Value(k) < PRZhigh AndAlso k <= Range(1) Then
        AddToOutput(Price.Bar.DateValue(k), D, "D")
        k += 1
        Do Until Price.Bar.Value(k) < D OrElse k > Range(1)
         AddToOutput(Price.Bar.DateValue(k), D)
         k += 1
        Loop
        If Price.Bar.Value(k) < D AndAlso k <= Range(1) Then
         AddToOutput(Price.Bar.DateValue(k), PRZlow, PRZlowtxt)
         k += 1
         Do Until Price.Bar.Value(k) < PRZlow OrElse k > Range(1)
          AddToOutput(Price.Bar.DateValue(k), PRZlow)
          k += 1
         Loop
        End If
       End If
      End If
     End If
    End If
   End If
  End If       
  end function
End Class

The AB=CD-up indicator, copy the following:

inherits RealCodeIndicator_base
 ' Mod ; 3/2/2013
 ' removed the level1 sequence. entry is plotted next bar after C is qualified,
 ' and being a low surrounded by 1 higher or equal low.
 ' added condition: Clow > Blow
 ' Mod ; 4/1/2013
 ' made "zooming" a userinput
 ' Mod ; 4/7/2013
 ' add retrace% to pointC
 ' add D projection as AB=CD range
 Sub New
  AutoLoop = False
  '# RangePattern = UserInput.Integer = 200
  '# NewLowPer = UserInput.Integer = 20
  '# PullBackPercent = UserInput.Single = 38.2
  '# EntryPercent = UserInput.Single = 23.6
  '# Zoom = userinput.integer = 0
  '#RECALC_ON_ZOOM_SCROLL
 End Sub
 Public Overrides Function Plot() As System.Single
  Dim Range(1) As Integer
  If Zoom = 0 Then
   Range(1) = price.Bar.count - 1
  Else
   Range(1) = Price.IndexForDate(ActiveChart.ZoomEndDate)
  End If
  Range(0) = Range(1) + 1 - RangePattern
  Dim BarA As Integer = Range(0)
  If Range(0) >= 0 Then
   For i As Integer = Range(0) To Range(1)
    If Price.Bar.LowValue(i) <= Price.Bar.LowValue(BarA) Then
     BarA = i
    End If
   Next
   If BarA - Range(0) < NewLowPer AndAlso BarA > 0 Then
    Dim Count As Integer = 0
    For i As Integer = BarA - 1 To 0 Step -1
     Count += 1
     If Price.Bar.LowValue(i) <= Price.Bar.LowValue(BarA) Then
      BarA = i
      Count = 0
     End If
     If Count >= NewLowPer Then
      Range(0) = BarA
      Exit For
     End If
    Next
   End If
   If BarA < Range(1) - 1 Then
    Dim ABretr As Single = Single.NaN
    Dim ABpercentRetr As Single
    Dim BarB As Integer = BarA
    Dim BarBqualified(1) As Integer
    BarBqualified(0) = BarA
    BarBqualified(1) = BarA
    Dim BarC As Integer = BarA
    Dim BarCQualified As Integer = BarA
    Dim Ctxt As String
    Dim L1 As Integer
    L1 = BarA
    For i As Integer = BarA + 1 To Range(1) - 1
     If Price.Bar.HighValue(i) > Price.Bar.HighValue(BarB) Then
      BarB = i
      BarC = BarB
      ABretr = PullBackPercent * (Price.Bar.HighValue(BarB) - Price.Bar.LowValue(BarA)) / 100
     End If
     If Price.Bar.lowValue(i) < Price.Bar.highValue(BarB) - ABretr AndAlso i > BarB AndAlso _
      price.Bar.lowvalue(i) < price.Bar.lowvalue(BarB) Then
      If BarC = BarB Then
       BarC = i
      Else If Price.Bar.LowValue(i) < Price.Bar.LowValue(BarC) Then
       BarC = i
      End If
      BarBqualified(0) = BarB
      If BarC > BarCqualified Then
       For j As Integer = i To Range(1) - 1
        If Price.Bar.lowValue(j) <= Price.Bar.lowValue(j - 1) AndAlso _
         Price.Bar.lowValue(j) <= Price.Bar.lowValue(j + 1) Then
         L1 = j
         BarCqualified = BarC
         BarBqualified(1) = BarBqualified(0)
         ABpercentRetr = (price.Bar.highvalue(BarBqualified(1)) - price.Bar.lowvalue(BarCqualified)) / _
          (price.Bar.highvalue(BarBqualified(1)) - price.Bar.lowvalue(BarA)) * 100
         Ctxt = "C=" & ABpercentRetr.ToString("N2") & "%"
         Exit For
        End If       
       Next
      End If
     End If
    Next
    If BarCqualified > BarBqualified(1) Then
     AddToOutput(Price.Bar.DateValue(BarA), Price.Bar.LowValue(BarA), "A")
     AddToOutput(Price.Bar.DateValue(BarBqualified(1)), Price.Bar.HighValue(BarBqualified(1)), "B")
     AddToOutput(Price.Bar.DateValue(BarCqualified), Price.Bar.LowValue(BarCqualified), Ctxt)
     Dim k As Integer = L1 + 1
     If k <= Range(1) Then
      Dim entry As Single = Price.Bar.LowValue(BarCQualified)  
      Dim B As Single
      Dim retr As Single
      Dim projection As Single
      Dim steptrgt As Single = EntryPercent * (Price.Bar.HighValue(BarBqualified(1)) - Price.Bar.LowValue(BarA)) / 100
      Dim AB As Single = price.Bar.highvalue(barBqualified(1)) - price.Bar.lowvalue(BarA)
      Dim BC As Single = Price.Bar.HighValue(BarBqualified(1)) - price.Bar.lowvalue(BarCqualified)
      retr = 100 * BC / AB
      entry = entry + steptrgt
      B = entry + steptrgt
      AddToOutput(Price.Bar.DateValue(k), entry, "entry")
      k += 1
      Do Until Price.Bar.Value(k) > entry OrElse k > Range(1)
       AddToOutput(Price.Bar.DateValue(k), entry)
       k += 1
      Loop
      If Price.Bar.Value(k) > entry AndAlso k <= Range(1) Then
       Dim PRZlow As Single
       Dim PRZlowtxt As String
       Dim PRZhigh As Single
       Dim PRZhightxt As String
       Dim D As Single
       D = price.Bar.lowvalue(BarCqualified) + (Price.Bar.HighValue(BarBqualified(1)) - Price.Bar.LowValue(BarA))
       Select Case retr
        Case <= 38.2
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 2.618
         PRZlowtxt = "261.8%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 2.618
         PRZhightxt = "261.8%BC"
        Case 38.2 To 50
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 2
         PRZlowtxt = "200%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 2.618
         PRZhightxt = "261.8%BC"
        Case 50 To 61.8
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.618
         PRZlowtxt = "161.8%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 2
         PRZhightxt = "200%BC"
        Case 61.8 To 70.7
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.41
         PRZlowtxt = "141%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 1.618
         PRZhightxt = "161.8%BC"
        Case 70.7 To 78.6
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.27
         PRZlowtxt = "127%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 1.41
         PRZhightxt = "141%BC"
        Case 78.6 To 88.6
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.13
         PRZlowtxt = "113%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 1.27
         PRZhightxt = "127%BC"
        Case 88.6 To 100
         PRZlow = price.Bar.lowvalue(BarCqualified) + BC * 1.13
         PRZlowtxt = "113%BC"
         PRZhigh = price.Bar.lowvalue(BarCqualified) + BC * 1.13
         PRZhightxt = "113%BC"
       End Select
       AddToOutput(Price.Bar.DateValue(k), PRZlow, PRZlowtxt)
       k += 1
       Do Until Price.Bar.Value(k) > PRZlow OrElse k > Range(1)
        AddToOutput(Price.Bar.DateValue(k), PRZlow)
        k += 1
       Loop
       If Price.Bar.Value(k) > PRZlow AndAlso k <= Range(1) Then
        AddToOutput(Price.Bar.DateValue(k), D, "D")
        k += 1
        Do Until Price.Bar.Value(k) > D OrElse k > Range(1)
         AddToOutput(Price.Bar.DateValue(k), D)
         k += 1
        Loop
        If Price.Bar.Value(k) > D AndAlso k <= Range(1) Then
         AddToOutput(Price.Bar.DateValue(k), PRZhigh, PRZhightxt)
         k += 1
         Do Until Price.Bar.Value(k) > PRZhigh OrElse k > Range(1)
          AddToOutput(Price.Bar.DateValue(k), PRZhigh)
          k += 1
         Loop
        End If
       End If
      End If
     End If
    End If
   End If
  End If       
   end function
End Class

quick example:

GLD reversed out of the down PRZ zone, defined by a 200% projection and D

a note on the condition that I'm using to sort a watchlist:

In case of a down pattern, it triggeres when price breaks a level to the DOWNside only.

This is correct, in case you use these patterns to take aggresive trades at the "entry" level.

However you can take trades when price reverse out of the PRZ zone, in which case price surpasses the PRZ level to the UPside. so I have to either rewrite the condition, or add another one to sort for reversals to the UPside.

Hope this makes sense.

Pthegreat

Ctxt = "C=" & ABpercentRetr.ToString("N2") & "%"

In reference to above line, can the high/low value of the bar be added?

we could probably plot a line at the high of point C of a ABCDup pattern and a line at the low of point C of a down pattern, like so:, and add txt to point C with the lowofbar (ABCDup), and highofbar on ABCDup

good idea, to get a very early entry on the pattern, right?

That is correct, my objective is to use the value at point C as a SellStop (low of bar).

Not sure if a condition can be created at that point also ?

New member here, and first a thank you to Pthegreat for posting all your work re:harmonics.

I was on your other thread and downloaded your excel sheet and have been playing around with that. I'm really impressed with how accurate it is.

That thread brought me here, and it looks like the formula above is an automated way to identify AB=CD patterns.

The Worden site is new to me and I've been testing a few indicators, trying to learn the system, but; I'm at a loss as to how to input your code.

I'm opening the indicator formula box, then pasting your formula. I end up with an error message. 

I'm probably doing somthing really basic that is wrong - not sure where to look for answers.

Perhaps this is a question for Bruce L, don't know.

Any suggestions appreciated.

Thanks

welcome MCPP

did a quick video on how to add the indicators/conditions.

http://screencast.com/t/OYICHOXnHT

couple of notes:

once you have them working, rightclick the indicator, and select edit.

right top corner of the popupscreen you'll see the userinput variables for the indicator

although the PullbackPercent is set to 38.2 at default, I usually change it to 37, and sometimes, once you get some experience finding the patterns, you might want to experiment with the RangePattern setting. I use setting s between 150 and 300 or so. It simply limits the amount of bars within the indicator can qualify a pattern.

Hope this helps.

Great, thanks for the info pthegreat.. I will give it a try tomorrow.

Here is an another new member.  I'm new to StockFinder as well as harmonics, but I learned harmonics had great potential for swing trades. I appreciate pthegreat (Peter?) for providing us a nice coding example.

While I was using and reading Peter's code from this thread, I thought I could improve the implementation;

Using ATR to remove *noise* from ZigZag

I sometimes got annoyed by the fact that a small spike/dip of price would trigger flipping AB=CD target. Since I'm a midium term swing trader, I wanted to ignore those small price movement, then I found someone wrote a code that uses ATR  to determin the threshold of ZigZag. See http://forums.worden.com/default.aspx?g=posts&t=42846

Decoupling of model and view (aka "separation of concerns")

As a Python programmer, I would say most of those examples of RealCode are !#$@!#%*$. Many people are stuffing up monolithtic code into Plot() method. I still think Plot() is a good place to write a simple and small indicator, but I disagree to put everything inside Plot() when the indicator is complicated.

So.... I wrote my own version of AB=CD indicator. I would say this is an MVP (Minimum Viable Product). It only provides AB=CD target at this moment. I'll add more features day by day.

Public partial Class RealCodeIndicator 
	Inherits RealCodeIndicator_base
    Public Overrides function Plot() as System.Single
		' Original: http://forums.worden.com/default.aspx?g=posts&t=42846
		
		'# Period = UserInput.Single = 14
		'# Factor = UserInput.Single = 3
		
		Static ZZ As MyZigZag
		Static ABCD As ABCD
		
		If isFirstBar Then
			ZZ = New MyZigZag(Price, Period, Factor)
			ABCD = New ABCD()
			Plot = Single.NaN
		Else
			ZZ.PrePlot(Price)
			If ZZ.IsExtreme(Price) Then 
				ABCD.AddExtreme(ZZ.GetExtremePrice())
				AddToOutput(ZZ.GetExtremeDate(), ZZ.GetExtremePrice())
			End If
			ZZ.PostPlot(Price, Factor)
		End If
		If isLastBar Then AddToOutput(ZZ.GetExtremeDate(), ZZ.GetExtremePrice)
		Plot = Single.NaN

end function
End Class

Class ABCD
	Private _Extremes(4) As Single
	
	Public Sub New()
		_Extremes(0) = Single.NaN
		_Extremes(1) = Single.NaN
		_Extremes(2) = Single.NaN
		_Extremes(3) = Single.NaN
	End Sub
	
	Public Sub AddExtreme(Value As Single)
		_Extremes(3) = _Extremes(2)
		_Extremes(2) = _Extremes(1)
		_Extremes(1) = _Extremes(0)
		_Extremes(0) = Value
	End Sub
End Class

Class MyZigZaG
	Private _TR As Single
	Private _TermRatio As Single
	Private _ATR As Single
	Private _SumWeight As Single
	Private _Weight As Single
	Private _ExtDate As Date
	Private _Extreme As Single
	Private _Tstop As Single
	Private _State As ZZState
	
	Public Sub New(Price, Period, Factor)
		_TR = Price.High - Price.Low
		_TermRatio = (Period - 1) / Period
		_ATR = _TR
		_SumWeight = _TermRatio + 1
		_Weight = 1 / _SumWeight
		_ExtDate = Price.DateValue
		
		If _StartsFromExtremeLow(Price) Then
			_Extreme = Price.Low
			_Tstop = System.Math.Max(Price.High, _Extreme + Factor * _ATR)
			_State = ZZState.Down
		Else
			_Extreme = Price.High
			_Tstop = System.Math.Min(Price.Low, _Extreme - Factor * _ATR)
			_State = ZZState.Up
		End If
	End Sub
	
	Private Function _StartsFromExtremeLow(Price) As Boolean
		Return  Price.High(-1) - System.Math.Min(Price.Low, Price.Low(-1)) < _
			System.Math.Max(Price.High, Price.High(-1)) - Price.Low(-1)
	End Function
	
	Public Function GetExtremeDate() As Date
		Return _ExtDate
	End Function
	
	Public Function GetExtremePrice() As Single
		Return _Extreme
	End Function
	
	Private Sub _SetDownState()
		_State = ZZState.Down
	End Sub
	
	Private Sub _SetUpState()
		_State = ZZState.Up
	End Sub
		
	Public Sub PrePlot(Price)
		_TR = (Price.High - Price.Low + _
			System.Math.Abs(Price.High - Price.Last(1)) + _
			System.Math.Abs(Price.Last(1) - Price.Low)) / 2
		_ATR = _ATR * (1 - _Weight) + _Weight * _TR
		_SumWeight = _SumWeight * _TermRatio + 1
		_Weight = 1 / _SumWeight
	End Sub
	
	Private Function _IsUp() As Boolean
		Return _State = ZZState.Up
	End Function
	
	Private Function _IsDown() As Boolean
		Return _State = ZZState.Down
	End Function
	
	Private Sub _UpdateDirectionToDown(Price, Factor)
		_SetDownState()
		_Extreme = Price.Low
		_ExtDate = Price.DateValue
		_TStop = System.Math.Max(Price.High, GetExtremePrice() + factor * _ATR)		
	End Sub
	
	Private Sub _UpdateDirectionToUp(Price, Factor)
		_SetUpState()
		_Extreme = Price.High
		_ExtDate = Price.DateValue
		_TStop = System.Math.Min(Price.Low, GetExtremePrice() - factor * _ATR)
	End Sub
	
	Private Sub _UpdateDirection(Price, Factor)
		If _IsUp() And (Price.Low < _TStop) Then
			_UpdateDirectionToDown(Price, Factor)
		ElseIf _IsDown() And (Price.High > _TStop) Then
			_UpdateDirectionToUp(Price, Factor)
		End If
	End Sub

	Private Sub _UpdateExtremeHigh(Price, Factor)
		If Price.High >= GetExtremePrice() Then
			_Extreme = Price.High
			_ExtDate = Price.DateValue
		End If
		_TStop = System.Math.Max(_TStop, GetExtremePrice() - factor * _ATR)
	End Sub
	
	Private Sub _UpdateExtremeLow(Price, Factor)
		If Price.Low <= GetExtremePrice Then
			_Extreme = Price.Low
			_ExtDate = Price.DateValue
		End If
		_TStop = System.Math.Min(_TStop, GetExtremePrice() + Factor * _ATR)
	End Sub
	Private Sub _UpdateExtreme(Price, Factor)
		If _IsUp() Then 
			_UpdateExtremeHigh(Price, Factor)
		Else 
			_UpdateExtremeLow(Price, Factor)
		End If
	End Sub
	
	Public Sub PostPlot(Price, Factor)
		_UpdateDirection(Price, Factor)
		_UpdateExtreme(Price, Factor)
	End Sub
	
	Public Function IsExtreme(Price) As Boolean
		If _state = ZZState.Up And Price.Low < _TStop Then Return True
		If _State = ZZState.Down And Price.High > _TStop Then Return True
		Return False
	End Function
End Class

Enum ZZState
	Up = 1
	Down = 2
End Enum

Oops. Discard previous code as I pasted a wrong one. Here is the working version.

Public partial Class RealCodeIndicator 
	Inherits RealCodeIndicator_base
    Public Overrides function Plot() as System.Single
		' Original: http://forums.worden.com/default.aspx?g=posts&t=42846
		
		'# Period = UserInput.Single = 14
		'# Factor = UserInput.Single = 3
		
		Static ZZ As MyZigZag
		Static ABCD As ABCD
		
		If isFirstBar Then
			ZZ = New MyZigZag(Price, Period, Factor)
			ABCD = New ABCD()
			Plot = Single.NaN
		Else
			ZZ.PrePlot(Price)
			If ZZ.IsExtreme(Price) Then 
				ABCD.AddExtreme(ZZ.GetExtremePrice())
				AddToOutput(ZZ.GetExtremeDate(), ZZ.GetExtremePrice())
			End If
			ZZ.PostPlot(Price, Factor)
		End If
		If isLastBar Then 
			ABCD.AddExtreme(ZZ.GetExtremePrice())
			AddToOutput(ZZ.GetExtremeDate(), ZZ.GetExtremePrice, ABCD.Display())
		End If
		
		Plot = Single.NaN
	End Function
End Class

Class ABCD
	Private _Extremes(4) As Single
	Private _Output As String
	
	Public Sub New()
		_Extremes(0) = Single.NaN
		_Extremes(1) = Single.NaN
		_Extremes(2) = Single.NaN
		_Extremes(3) = Single.NaN
		_Output = ""
	End Sub
	
	Public Sub AddExtreme(Value As Single)
		_Extremes(3) = _Extremes(2)
		_Extremes(2) = _Extremes(1)
		_Extremes(1) = _Extremes(0)
		_Extremes(0) = Value
	End Sub
	
	Private Sub _AddToOutput(Str As String)
		_Output = _Output & Str & System.Environment.NewLine
	End Sub
	
	Private Function _OutputAsC()
		Dim Out As String = "If this is C Then" & System.Environment.NewLine
		Dim AB As Single = _Extremes(1) - _Extremes(2)
		Return Out & " D would be " & AB + _Extremes(0)
	End Function

	Private Function _OutputAsD()
		Dim Out As String = "If this is D Then" & System.Environment.NewLine
		Dim AB As Single = _Extremes(2) - _Extremes(3)
		Return Out & " Target would be " & AB + _Extremes(1)
	End Function
	
	Public Function Display() As String
		_AddToOutput(_OutputAsC())
		_AddToOutput(_OutputAsD())
		Return _Output
	End Function
End Class

Class MyZigZaG
	Private _TR As Single
	Private _TermRatio As Single
	Private _ATR As Single
	Private _SumWeight As Single
	Private _Weight As Single
	Private _ExtDate As Date
	Private _Extreme As Single
	Private _Tstop As Single
	Private _State As ZZState
	
	Public Sub New(Price, Period, Factor)
		_TR = Price.High - Price.Low
		_TermRatio = (Period - 1) / Period
		_ATR = _TR
		_SumWeight = _TermRatio + 1
		_Weight = 1 / _SumWeight
		_ExtDate = Price.DateValue
		
		If _StartsFromExtremeLow(Price) Then
			_Extreme = Price.Low
			_Tstop = System.Math.Max(Price.High, _Extreme + Factor * _ATR)
			_State = ZZState.Down
		Else
			_Extreme = Price.High
			_Tstop = System.Math.Min(Price.Low, _Extreme - Factor * _ATR)
			_State = ZZState.Up
		End If
	End Sub
	
	Private Function _StartsFromExtremeLow(Price) As Boolean
		Return  Price.High(-1) - System.Math.Min(Price.Low, Price.Low(-1))  _TStop) Then
			_UpdateDirectionToUp(Price, Factor)
		End If
	End Sub

	Private Sub _UpdateExtremeHigh(Price, Factor)
		If Price.High >= GetExtremePrice() Then
			_Extreme = Price.High
			_ExtDate = Price.DateValue
		End If
		_TStop = System.Math.Max(_TStop, GetExtremePrice() - factor * _ATR)
	End Sub
	
	Private Sub _UpdateExtremeLow(Price, Factor)
		If Price.Low  _TStop Then Return True
		Return False
	End Function
End Class

Enum ZZState
	Up = 1
	Down = 2
End Enum

thanks for the sharing masayang, but the second code, has errors

Hmm. That code works on my environment, SF 5.0.39.17229 on Windows Server 2012.  What kind of error did you get actually?

In your code where is 

ZZ.PostPlot(Price, Factor)

Sorry folks. I confirmed that code didn't work. 

Here is an updated version. Now it displays AB=CD target as well as BAT, Gartley, Crab, or Butterfly target when available.

	Public Overrides function Plot() as System.Single
		' Original: http://forums.worden.com/default.aspx?g=posts&t=42846
		
		'# Period = UserInput.Single = 14
		'# Factor = UserInput.Single = 3
		
		Static ZZ As MyZigZag
		Static XABCD As XABCD
		
		If isFirstBar Then
			ZZ = New MyZigZag(Price, Period, Factor)
			XABCD = New XABCD()
			Plot = Single.NaN
		Else
			ZZ.PrePlot(Price)
			If ZZ.IsExtreme(Price) Then 
				XABCD.AddExtreme(ZZ.GetExtremePrice())
				AddToOutput(ZZ.GetExtremeDate(), ZZ.GetExtremePrice())
			End If
			ZZ.PostPlot(Price, Factor)
		End If
		If isLastBar Then 
			XABCD.AddExtreme(ZZ.GetExtremePrice())
			AddToOutput(ZZ.GetExtremeDate(), ZZ.GetExtremePrice, XABCD.Display())
		End If
		
		Plot = Single.NaN	
		

end function
End Class

Class XABCD
	Private _Extremes(5) As Single
	Private _Output As String
	
	Public Sub New()
		_Extremes(0) = Single.NaN 'D
		_Extremes(1) = Single.NaN 'C
		_Extremes(2) = Single.NaN 'B
		_Extremes(3) = Single.NaN 'A
		_Extremes(4) = Single.NaN 'X
		_Output = ""
	End Sub
	
	Public Sub AddExtreme(Value As Single)
		_Extremes(4) = _Extremes(3)
		_Extremes(3) = _Extremes(2)
		_Extremes(2) = _Extremes(1)
		_Extremes(1) = _Extremes(0)
		_Extremes(0) = Value
	End Sub
	
	Private Function XA() As Single
		Return _Extremes(3) - _Extremes(4)
	End Function
	
	Private Function AB() As Single
		Return _Extremes(3) - _Extremes(2)
	End Function
	
	Private Function BC() As Single
		Return _Extremes(1) - _Extremes(2)
	End Function
	
	Private Function CD() As Single
		Return _Extremes(1) - _Extremes(0)
	End Function
	
	Private Function isCrab() As Boolean
		'AB >= 0.382XA and AB <=0.618XA
		If AB() < 0.352 * XA() Then Return False
		If AB() > 0.648 * XA() Then Return False
		'BC >= 0.382AB and BC <= 0.886AB
		If BC() < 0.352 * AB() Then Return False
		If BC() > 0.916 * AB() Then Return False
		'CD >= 2.618BC and CD <= 3.618CD
		'If CD() < 2.588 * BC() Then Return False
		'If CD() > 3.648 * BC() Then Return False
		Return True
	End Function
	
	Private Function isDeepCrab() As Boolean
		'AB=0.886XA
		If AB() < 0.856 * XA() Then Return False
		If AB() > 0.916 * XA() Then Return False
		'BC >= 0.382AB and BC < 0.886AB
		If BC() < 0.352 * AB() Then Return False
		If BC() > 0.916 * AB() Then Return False
		'CD >= 2.24BC and CD <= 3.618BC
		'If CD() < 2.21 * BC() Then Return False
		'If CD() > 3.648 * BC() Then Return False
		Return True
	End Function
	
	Private Function isButterfly() As Boolean
		'AB=0.786XA
		If AB() < 0.756 * XA() Then Return False
		If AB() > 0.816 * XA() Then Return False
		'BC>=0.382AB and BC<=0.886AB
		If BC() < 0.352 * AB() Then Return False
		If BC() > 0.916 * AB() Then Return False
		'CD>=1.618BC and CD<=2.24BC
		'If CD() < 1.588 * BC() Then Return False
		'If CD() > 2.27 * BC() Then Return False
		Return True
	End Function
	
	Private Function isGartley() As Boolean
		'AB=0.618XA
		If AB() < 0.588 * XA() Then Return False
		If AB() > 0.648 * XA() Then Return False
		'=and(C7>=0.382, C7<=0.886)
		'BC >= 0.382AB and BC <= 0.886AB
		If BC() < 0.352 * AB() Then Return False
		If BC() > 0.916 * AB() Then Return False
		'CD >= 1.13BC and CD <= 1.618BC
		'If CD() < 1.1 * BC() Then Return False
		'If CD() > 0.916 * BC() Then Return False
		Return True
	End Function
	
	Private Function isBAT() As Boolean
		'AB >= 0.382XA AND AB <= 0.5XA
		If AB() < 0.382 * XA() Then Return False
		If AB() > 0.5 * XA() Then Return False
		'BC >= 0.382AB and BC <= 0.886AB
		If BC() < 0.382 * AB() Then Return False
		If BC() > 0.886 * AB() Then Return False
		'=and(C8>=1.618, C8<=2.618)
		'CD >= 1.618BC and CD <= 2.618BC
		'If CD() < 1.618 * BC() Then Return False
		'If CD() > 2.618 * BC() Then Return False
		Return True
	End Function
	
	Private Sub _AddToOutput(Str As String)
		_Output = _Output & Str & System.Environment.NewLine
	End Sub
	
	Private Function BatTarget() As Single
		'A - * 0.886XA
		Return _Extremes(3) - XA() * 0.886
	End Function
	
	Private Function GartleyTarget() As Single
		'A - 0.786XA
		return _Extremes(3)-0.786*XA()
	End Function
	
	Private Function CrabTarget() As Single
		'A - 1.618*XA
		return _Extremes(3) - 1.618*XA()
	End Function
	
	Private Function DeepCrabTarget() As Single
		return CrabTarget()
	End Function
	
	Private Function ButterflyTarget() As Single
		'A - 1.27XA()
		Return _Extremes(3) - 1.27 * XA()
	End Function
	
	Private Function ABCDTarget() As Single
		Return _Extremes(1) - AB()	
	End Function
	
	Public Function Display() As String
		_AddToOutput("AB=CD Target=" & ABCDTarget())
		If isBAT() Then _AddToOutput("BAT Target=" & BatTarget())
		If isGartley() Then _AddToOutput("Gartley Target=" & GartleyTarget())
		If isCrab() Then _AddToOutput("Crab Target=" & CrabTarget())
		If isDeepCrab() Then _AddToOutput("Deep Crab Target=" & DeepCrabTarget())
		If isButterfly() Then _AddToOutput("Butterfly Target=" & ButterflyTarget())
		Return _Output
	End Function
End Class

Class MyZigZaG
	Private _TR As Single
	Private _TermRatio As Single
	Private _ATR As Single
	Private _SumWeight As Single
	Private _Weight As Single
	Private _ExtDate As Date
	Private _Extreme As Single
	Private _Tstop As Single
	Private _State As ZZState
	
	Public Sub New(Price, Period, Factor)
		_TR = Price.High - Price.Low
		_TermRatio = (Period - 1) / Period
		_ATR = _TR
		_SumWeight = _TermRatio + 1
		_Weight = 1 / _SumWeight
		_ExtDate = Price.DateValue
		
		If _StartsFromExtremeLow(Price) Then
			_Extreme = Price.Low
			_Tstop = System.Math.Max(Price.High, _Extreme + Factor * _ATR)
			_State = ZZState.Down
		Else
			_Extreme = Price.High
			_Tstop = System.Math.Min(Price.Low, _Extreme - Factor * _ATR)
			_State = ZZState.Up
		End If
	End Sub
	
	Private Function _StartsFromExtremeLow(Price) As Boolean
		Return  Price.High(-1) - System.Math.Min(Price.Low, Price.Low(-1)) < _
			System.Math.Max(Price.High, Price.High(-1)) - Price.Low(-1)
	End Function
	
	Public Function GetExtremeDate() As Date
		Return _ExtDate
	End Function
	
	Public Function GetExtremePrice() As Single
		Return _Extreme
	End Function
	
	Private Sub _SetDownState()
		_State = ZZState.Down
	End Sub
	
	Private Sub _SetUpState()
		_State = ZZState.Up
	End Sub
		
	Public Sub PrePlot(Price)
		_TR = (Price.High - Price.Low + _
			System.Math.Abs(Price.High - Price.Last(1)) + _
			System.Math.Abs(Price.Last(1) - Price.Low)) / 2
		_ATR = _ATR * (1 - _Weight) + _Weight * _TR
		_SumWeight = _SumWeight * _TermRatio + 1
		_Weight = 1 / _SumWeight
	End Sub
	
	Private Function _IsUp() As Boolean
		Return _State = ZZState.Up
	End Function
	
	Private Function _IsDown() As Boolean
		Return _State = ZZState.Down
	End Function
	
	Private Sub _UpdateDirectionToDown(Price, Factor)
		_SetDownState()
		_Extreme = Price.Low
		_ExtDate = Price.DateValue
		_TStop = System.Math.Max(Price.High, GetExtremePrice() + factor * _ATR)		
	End Sub
	
	Private Sub _UpdateDirectionToUp(Price, Factor)
		_SetUpState()
		_Extreme = Price.High
		_ExtDate = Price.DateValue
		_TStop = System.Math.Min(Price.Low, GetExtremePrice() - factor * _ATR)
	End Sub
	
	Private Sub _UpdateDirection(Price, Factor)
		If _IsUp() And (Price.Low < _TStop) Then
			_UpdateDirectionToDown(Price, Factor)
		ElseIf _IsDown() And (Price.High > _TStop) Then
			_UpdateDirectionToUp(Price, Factor)
		End If
	End Sub

	Private Sub _UpdateExtremeHigh(Price, Factor)
		If Price.High >= GetExtremePrice() Then
			_Extreme = Price.High
			_ExtDate = Price.DateValue
		End If
		_TStop = System.Math.Max(_TStop, GetExtremePrice() - factor * _ATR)
	End Sub
	
	Private Sub _UpdateExtremeLow(Price, Factor)
		If Price.Low <= GetExtremePrice Then
			_Extreme = Price.Low
			_ExtDate = Price.DateValue
		End If
		_TStop = System.Math.Min(_TStop, GetExtremePrice() + Factor * _ATR)
	End Sub
	Private Sub _UpdateExtreme(Price, Factor)
		If _IsUp() Then 
			_UpdateExtremeHigh(Price, Factor)
		Else 
			_UpdateExtremeLow(Price, Factor)
		End If
	End Sub
	
	Public Sub PostPlot(Price, Factor)
		_UpdateDirection(Price, Factor)
		_UpdateExtreme(Price, Factor)
	End Sub
	
	Public Function IsExtreme(Price) As Boolean
		If _state = ZZState.Up And Price.Low < _TStop Then Return True
		If _State = ZZState.Down And Price.High > _TStop Then Return True
		Return False
	End Function
End Class

Enum ZZState
	Up = 1
	Down = 2
End Enum

Now I need to find how to create a condition from my indicator.

I've just implemented a new feature so that I can find Bat, Crab, Gartley, or Butterfly pattern in the chart. You can find the latest code from https://gist.github.com/masayang/215ca81f6e137857b160

Attached image is AKAM 15min chart. It's amazing the price reversed at $46.66, which is 1.618XA.

interesting.

Tried to get this to post a value so I could sort and search for, but it won't sort.  Not sure why.

    none = 0
    Bat     = 1
    Gartley = 2
    Crab    = 4
    Butterfly = 8
    ABCD    = 16
 

So, this creates a code  i.e.  1 is a BAT

3 is BAT + Gartley

7 is Bat+GART+Crab

15 is bat +gart+crab+butterfly

31 is bat+gart+crab + butterfly+abcd

and any other combination creates a code which you can identify the patterns covered by the chart.

<WBIGuid("3b6b8e77-cbd1-4ca5-bfd4-5672750d6203"),FriendlyName("RealCodeIndicator"),BlockTemplateEmptyMethodOnly()> _
Public Partial Class RealCodeIndicator
    Inherits RealCodeIndicator_base
 
    Public Overrides Function Plot() As System.Single
        ' Original: http://forums.worden.com/default.aspx?g=posts&t=42846
        '# Period = UserInput.Single = 14
        '# Factor = UserInput.Single = 3
        '# Delta = UserInput.Single = 3
        Static ZZ As MyZigZag
        Static XABCD As XABCD
        If isFirstBar Then
            ZZ = New MyZigZag(Price, Period, Factor)
            XABCD = New XABCD(Delta)
            plot = Single.NaN
        Else
            ZZ.PrePlot(Price)
            If ZZ.IsExtreme(Price) Then
                XABCD.AddExtreme(ZZ.GetExtremePrice())
            End If
            ZZ.PostPlot(Price, Factor)
        End If
        plot = XABCD.GetCode()
        

end function
End Class
 
Class XABCD
    Private _X,_A, _B, _C, _D As Single
    Private _Output As String
    Private _Delta As Single
    Private code As XabcdCode
    
    Public Function GetCode() As Single
        code = XabcdCode.none
        CheckABCD(code)
        CheckBat(code)
        CheckGartley(code)
        CheckCrab(code)
        CheckButterfly(code)
        Return code
    End Function

        Public Sub New(Delta As Single)
            _Delta = Delta
            _A = Single.NaN
            _B = Single.NaN
            _C = Single.NaN
            _D = Single.NaN
            _Output = ""
        End Sub
        Public Sub AddExtreme(Value As Single)
            _X = _A
            _A = _B
            _B = _C
            _C = _D
            _D = Value
        End Sub
        Private Function _ABCDTarget() As Single
            'BC=0.382AB
            If _BC() >= 0.382 * (1 - _delta / 100) * _AB() And _BC() <= 0.382 * (1 + _delta / 100) * _AB() Then
                Return _C - 2.24 * _BC()
            End If
            'BC=0.5AB
            If _BC() >= 0.5 * (1 - _delta / 100) * _AB() And _BC() <= 0.5 * (1 + _delta / 100) * _AB() Then
                Return _C - 2 * _BC()
            End If
            'BC=0.618AB
            If _BC() >= 0.618 * (1 - _delta / 100) * _AB() And _BC() <= 0.618 * (1 + _delta / 100) * _AB() Then
                Return _C - 1.618 * _BC()
            End If
            'BC=0.707AB
            If _BC() >= 0.707 * (1 - _delta / 100) * _AB() And _BC() <= 0.707 * (1 + _delta / 100) * _AB() Then
                Return _C - 1.41 * _BC()
            End If
            'BC=0.786AB
            If _BC() >= 0.786 * (1 - _delta / 100) * _AB() And _BC() <= 0.786 * (1 + _delta / 100) * _AB() Then
                Return _C - 1.27 * _BC()
            End If
            'BC=0.886AB
            If _BC() >= 0.886 * (1 - _delta / 100) * _AB() And _BC() <= 0.886 * (1 + _delta / 100) * _AB() Then
                Return _C - 1.13 * _BC()
            End If
 
            return single.NaN
        End Function
        Private Function _BatTarget() As Single
            'AB<0.618XA
            If _AB() > 0.618 * (1 + _delta / 100) * _XA() Then Return Single.NaN
            'BC is 0.382AB~0.886AB
            If _BC() < 0.382 * (1 - _delta / 100) * _AB() Then Return Single.NaN
            If _BC() > 0.886 * (1 + _delta / 100) * _AB() Then Return Single.NaN
            Return _A - 0.886 * _XA()
        End Function
        Private Function _GartleyTarget() As Single
            'AB=0.618XA
            If _AB() > 0.618 * (1 + _delta / 100) * _XA() Then Return Single.NaN
            If _AB() < 0.618 * (1 - _delta / 100) * _XA() Then Return Single.NaN
            'BC is 0.382AB~0.886AB
            If _BC() < 0.382 * (1 - _delta / 100) * _AB() Then Return Single.NaN
            If _BC() > 0.886 * (1 + _delta / 100) * _AB() Then Return Single.NaN
            Return _A - 0.786 * _XA()
        End Function
        Private Function _CrabTarget() As Single
            'AB=0.382~0.618XA
            If _AB() > 0.618 * (1 + _delta / 100) * _XA() Then Return Single.NaN
            If _AB() < 0.382 * (1 - _delta / 100) * _XA() Then Return Single.NaN
            'BC is 0.382AB~0.886AB
            If _BC() < 0.382 * (1 - _delta / 100) * _AB() Then Return Single.NaN
            If _BC() > 0.886 * (1 + _delta / 100) * _AB() Then Return Single.NaN
            Return _A - 1.618 * _XA()
        End Function
        Private Function _ButterflyTarget() As Single
            'AB=0.786
            If _AB() > 0.786 * (1 + _delta / 100) * _XA() Then Return Single.NaN
            If _AB() < 0.786 * (1 - _delta / 100) * _XA() Then Return Single.NaN
            'BC is 0.382AB~0.886AB
            If _BC() < 0.382 * (1 - _delta / 100) * _AB() Then Return Single.NaN
            If _BC() > 0.886 * (1 + _delta / 100) * _AB() Then Return Single.NaN
            Return _A - 1.27 * _XA()
        End Function
        Private Function _XA() As Single
            Return _A - _X
        End Function
        Private Function _AB() As Single
            Return _A - _B
        End Function
        Private Function _BC() As Single
            Return _C - _B
        End Function
        Private Function _CD() As Single
            Return _C - _D
        End Function
 
        Private Sub _AddToOutput(Str As String)
            _Output = _Output & Str & System.Environment.NewLine
        End Sub
    Private Function CheckBat(ByRef code As XabcdCode) As String
        Dim Target As Single
        Target = _BatTarget()
        If Not system.Single.isnan(target) Then
            code = (code Or XABCDCode.Bat)
            Return "BAT Target=" & Target
        Else
            Return ""
        End If
    End Function
    Private Function CheckGartley(ByRef code As XabcdCode) As String
        Dim Target As Single
        Target = _GartleyTarget()
        If Not system.Single.isnan(target) Then    
            code = (code Or XABCDCode.Gartley)
            Return "Gartley Target=" & Target
        Else
            Return ""
        End If
        
    End Function
 
    Private Function CheckCrab(ByRef code As XabcdCode) As String
        Dim Target As Single
        Target = _CrabTarget()
        If Not system.Single.isnan(target) Then    
            code = (code Or XABCDCode.Crab)
            Return "Crab Target=" & Target
        Else
            Return ""
        End If
        
        End Function
    Private Function CheckButterfly(ByRef code As XabcdCode) As String
        Dim Target As Single
        Target = _ButterflyTarget()
        If Not system.Single.isnan(target) Then
            code = (code Or XABCDCode.Butterfly)
            Return "Butterfly Target=" & Target
        Else
            Return ""
        End If
        
        End Function
    Private Function CheckABCD(ByRef code As XabcdCode) As String
        Dim Target As Single
        Target = _ABCDTarget()
        If Not system.Single.isnan(target) Then
            code = (code Or XABCDCode.ABCD)
            Return "ABCD Target=" & target
        Else
            Return ""
        End If
        End Function
    Public Function Display() As String
        code = XabcdCode.none
        _AddToOutput(CheckABCD(code))
        _AddToOutput(CheckBat(code))
        _AddToOutput(CheckGartley(code))
        _AddToOutput(CheckCrab(code))
        _AddToOutput(CheckButterfly(code))
        Return _Output
        End Function
    End Class
 
Class MyZigZaG
    Private _TR As Single
    Private _TermRatio As Single
    Private _ATR As Single
    Private _SumWeight As Single
    Private _Weight As Single
    Private _ExtDate As Date
    Private _Extreme As Single
    Private _Tstop As Single
    Private _State As ZZState
    
    Public Sub New(Price As Object, Period As Single, Factor As Single)
        _TR = Price.High - Price.Low
        _TermRatio = (Period - 1) / Period
        _ATR = _TR
        _SumWeight = _TermRatio + 1
        _Weight = 1 / _SumWeight
        _ExtDate = Price.DateValue
        If _StartsFromExtremeLow(Price) Then
            _Extreme = Price.Low
            _Tstop = System.Math.Max(Price.High, _Extreme + Factor * _ATR)
            _State = ZZState.Down
        Else
            _Extreme = Price.High
            _Tstop = System.Math.Min(Price.Low, _Extreme - Factor * _ATR)
            _State = ZZState.Up
        End If
    End Sub
    Private Function _StartsFromExtremeLow(Price As Object) As Boolean
        Return Price.High(-1) - System.Math.Min(Price.Low, Price.Low(-1)) < _
            System.Math.Max(Price.High, Price.High(-1)) - Price.Low(-1)
    End Function
    Public Function GetExtremeDate() As Date
        Return _ExtDate
    End Function
    Public Function GetExtremePrice() As Single
        Return _Extreme
    End Function
    Private Sub _SetDownState()
        _State = ZZState.Down
    End Sub
    Private Sub _SetUpState()
        _State = ZZState.Up
    End Sub
    Public Sub PrePlot(Price As Object)
        _TR = (Price.High - Price.Low + _
            System.Math.Abs(Price.High - Price.Last(1)) + _
            System.Math.Abs(Price.Last(1) - Price.Low)) / 2
        _ATR = _ATR * (1 - _Weight) + _Weight * _TR
        _SumWeight = _SumWeight * _TermRatio + 1
        _Weight = 1 / _SumWeight
    End Sub
    Private Function _IsUp() As Boolean
        Return _State = ZZState.Up
    End Function
    Private Function _IsDown() As Boolean
        Return _State = ZZState.Down
    End Function
    Private Sub _UpdateDirectionToDown(Price As Object, Factor As Single)
        _SetDownState()
        _Extreme = Price.Low
        _ExtDate = Price.DateValue
            _TStop = System.Math.Max(Price.High, GetExtremePrice() + factor * _ATR)    
        End Sub
    Private Sub _UpdateDirectionToUp(Price As Object, Factor As Single)
        _SetUpState()
        _Extreme = Price.High
        _ExtDate = Price.DateValue
        _TStop = System.Math.Min(Price.Low, GetExtremePrice() - factor * _ATR)
    End Sub
    Private Sub _UpdateDirection(Price As Object, Factor As Single)
        If _IsUp() And (Price.Low < _TStop) Then
            _UpdateDirectionToDown(Price, Factor)
        ElseIf _IsDown() And (Price.High > _TStop) Then
            _UpdateDirectionToUp(Price, Factor)
            End If
        End Sub
 
    Private Sub _UpdateExtremeHigh(Price As Object, Factor As Single)
        If Price.High >= GetExtremePrice() Then
            _Extreme = Price.High
            _ExtDate = Price.DateValue
        End If
        _TStop = System.Math.Max(_TStop, GetExtremePrice() - factor * _ATR)
    End Sub
    Private Sub _UpdateExtremeLow(Price As Object, Factor As Single)
        If Price.Low <= GetExtremePrice Then
            _Extreme = Price.Low
            _ExtDate = Price.DateValue
        End If
        _TStop = System.Math.Min(_TStop, GetExtremePrice() + Factor * _ATR)
    End Sub
    Private Sub _UpdateExtreme(Price As Object, Factor As Single)
        If _IsUp() Then
            _UpdateExtremeHigh(Price, Factor)
        Else
            _UpdateExtremeLow(Price, Factor)
        End If
    End Sub
    Public Sub PostPlot(Price As Object, Factor As Single)
        _UpdateDirection(Price, Factor)
        _UpdateExtreme(Price, Factor)
    End Sub
    Public Function IsExtreme(Price As Object) As Boolean
        If _state = ZZState.Up And Price.Low < _TStop Then Return True
            If _State = ZZState.Down And Price.High > _TStop Then Return True
        Return False
    End Function
End Class
 
Enum ZZState
    Up = 1
    Down = 2
End Enum

Enum XabcdCode
    none = 0
    Bat     = 1
    Gartley = 2
    Crab    = 4
    Butterfly = 8
    ABCD    = 16
End Enum
 

Bruce,

In reference to pthegreat posting on Tuesday, April 09, 2013 8:50:42 PM , is it possible to create a condition for fib levels 23.6%,113%, 127%,141%,

161.8%, 200%, 261.8%, D ... 0.50 cents above/below.?

Yes, No, Maybe....

It is too involved for me to say yes or no yet, so I guess the answer is maybe.

It is possible that pthegreat, jas0501 or masayang might have a more definitive answer.

I'm currently working on creating RealCode in the context of a personal training session. As a PTS costs $95 per hour, it gets priority over free RealCode in the forums.

You can schedule a PTS with a TC2000 trainer as well if you would like. They can also build scans for you. Ask them anything related to TC2000 (or StockFinder with advance notice). Have them set up your layouts, customize your charts, teach you general functionality, etc. Such sessions can be conducted via remote assistance where the trainer can view your machine and save any changes they make and teach you some things along the way. These sessions are $95.00 an hour with a one hour minimum. Call the sales line at 1-800-776-4940 or email us at support@TC2000.com to arrange one of these sessions.

caution; I'm sorry but I recently entered into a professional partnership, and I can't share any code anymore.

Having said that, if you go through all my posts, I'm sure from what I have shared and from Bruce's invaluable input, you should be able to do what you're asking.

good luck,

pthegreat

Bruce, one suggestion;

I have noticed that a lot of old posts have dissapeared. I assume that the forum can hold only a certain amount of data, and then older posts get removed?

There was a lot of valuable info that I can't find anymore. Is it possible that Worden would make a downloadable archive available of all posts, since beginning of time?

Regards,

P.

The main reason a post would disappear is because it is in a forum which has been removed the website.

These forums are removed for a variety of reasons, but the biggest is that the forum is for an outdated product which is no longer available or supported. When the information in the forums is about a more recent similar product which is still available, the information is frequently wrong or misleading.

If you have a particular topic you want to look at which is not available, you can make a request that it be moved into one of the currently available forums. We might be able to get a particular post moved, but the older removed forum as a whole in which the post is contained will not be re-added.