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brfarrell
 Posted : Tuesday, May 18, 2010 7:55:18 PM
Registered User
Joined: 12/23/2008
Posts: 4
Could someone please give me the pcf for a 20 period ATR so I can put it on my charts? thank so much in advance for you help. Brian Farrell
Bruce_L
 Posted : Wednesday, May 19, 2010 7:55:10 AM

Worden Trainer

Joined: 10/7/2004
Posts: 65,138
Average True Range is not one of TeleChart's built in indicators, but it can be created as a Custom Indicator. Please try the following for a traditional Wilder's Smoothed 20-Period ATR:

Select Chart Template | Add Indicator | Indicator.
- Visible: Checked
- Center Zero Line: Checked
- Plot using price scale: Unchecked
- Smoothing Average: 39 (twice the ATR-Period minus one)
- Average Type: Exponential
- Indicator Formula: (H - L + ABS(H - C1) + ABS(L - C1)) / 2

You can adjust the Average True Range Period by changing the Smoothing Average in the Custom Indicator. For example, to plot a 14-Period ATR, just change the Smoothing Average to 27 (which equals (14 * 2) -1).

A 20-Period Simple Moving Average of True Range could be created by changing the Smoothing Average to 20 and the Average Type to Simple.

A 20-Period Exponential Moving Averoge of True Range could be created by changing the Smoothing Average to 20 and the Average Type to Exponential.

The 20-Day Average True Range topic contains Personal Criteria Formulas for all three interpretations of a 20-Period Average True Range. You may wish to review the following:

Plotting Custom Indicators with Examples
PCF Formula Descriptions

-Bruce
Personal Criteria Formulas
TC2000 Support Articles
Mark
 Posted : Monday, July 5, 2010 4:31:03 PM
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Joined: 10/7/2004
Posts: 76
Why is the formula divided by 2
Bruce_L
 Posted : Tuesday, July 6, 2010 8:49:39 AM

Worden Trainer

Joined: 10/7/2004
Posts: 65,138
Mark,
Why? Because that's the way the math works out.

We could approach this quite a few different ways, but let's start by using the techniques given in Min Max PCFs to get a formula for the higher of the current High and the previous Close:

(H + C1 + ABS(H - C1)) / 2

It adds the High and the previous Close together and adds the absolute difference between the two. The reason you are dividing by two is because you added them together in the first place.

And then use the same techniques to get a formula for the lower of the current Low and the previous Close:

(L + C1 - ABS(L - C1)) / 2

It adds the Low and the previous Close together and subtracts the absolute difference between the two. The reason you are dividing by two is because you added them together in the first place.

Now if we subtract the second formula from the first we get:

(H + C1 + ABS(H - C1)) / 2 - (L + C1 - ABS(L - C1)) / 2

The C1s cancel out. Re-arranging the rest gets us the original formula (with the divide by two being there because they were there from the original calculations).

(H - L + ABS(H - C1) + ABS(L - C1)) / 2

-Bruce
Personal Criteria Formulas
TC2000 Support Articles
nandaulgolog
 Posted : Sunday, October 17, 2010 1:21:31 PM
Registered User
Joined: 5/16/2010
Posts: 33
Hi Bruce,

Would the following give me a sort formula for ATR as a percentage of the stock's price in telechart? Thanks

((H - L + ABS(H - C1) + ABS(L - C1)) / 2) / avgc14
diceman
 Posted : Sunday, October 17, 2010 1:40:14 PM
Registered User
Joined: 1/28/2005
Posts: 6,049
That would give you one ATR (known as TR) vs. a 14 bar simple average of the close.

Thanks
diceman

Skyla777
 Posted : Tuesday, October 19, 2010 8:16:20 PM
Registered User
Joined: 2/9/2010
Posts: 50
Can a moving VWAP 10 day be created for telecharts?
Skyla777
 Posted : Tuesday, October 19, 2010 8:17:18 PM
Registered User
Joined: 2/9/2010
Posts: 50
I am a platinum customer, don't know why that did not show up! shannon
StockGuy
 Posted : Tuesday, October 19, 2010 10:29:34 PM

Joined: 9/30/2004
Posts: 9,187
QUOTE (shannon.3330)
Can a moving VWAP 10 day be created for telecharts?

Create a custom indicator using the following formula and be sure to check "Plot using price scale".

((C*V) + (C1*V1) + (C2*V2) + (C3*V3) + (C4*V4) + (C5*V5) + (C6*V6) + (C7*V7) + (C8*V8) + (C9*V9)) / (V + V1 + V2 + V3 + V4 + V5 + V6 + V7 + V8 + V9)
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