Bruce,

I am rying to covert a Trend Strength Indicator tha I found on the web to a PCF,but I am hviong a problem convertin i to a PCF.

 Here is the formula:  TSI = Average( ( Average( Ratio , 10) ), 100 ) • This is the average of the Ratio over the past 10 days, followed by averaging that resulting array for 100 days -- an average of an average, if you will. • Ratio = Absolute Value( Close - ( Close Ten Days Ago ) ) / ATR(10) • ATR(10) = Average of the True Range over the last 10 days

I got Rato,10 OK as follows but can't get the rest due to syntax errors:

ABS(C-(C10))/ABS(C-(C10))/ ((AVGH10 - AVGL10) /((AVGH10 - AVGL10) / 2 + (ABS(H - C1) + ABS(C1 - L) + ABS(H1 - C2) + ABS(C2 - L1) + ABS(H2 - C3) + ABS(C3 - L2) + ABS(H3 - C4) + ABS(C4 - L3) + ABS(H4 - C5) + ABS(C5 - L4) + ABS(H5 - C6) + ABS(C6 - L5) + ABS(H6 - C7) + ABS(C7 - L6) + ABS(H7 - C8) + ABS(C8 - L7) + ABS(H8 - C9) + ABS(C9 - L8) + ABS(H9 - C10) + ABS(C10 - L9)) / 20))

Ref: http://www.nonrandomwalk.com/Blog/tsi.html

Please help.

Thanks,

vince

The Trend Strength Index can be written as follows for TC2000 v17.

AVG(AVG((C - C10) / ATR10, 10), 100)

But any formula for earlier versions of TC2000 would be too long and slow to be practical. About the best you can do is create the formula for the Ratio as a Custom PCF Indicator with the smoothing set to 100 and then add a 10 period moving average to that. The moving average would be the Trend Strength Index.

ABS(C - C10) / ((AVGH10 - AVGL10) / 2 + (ABS(H - C1) + ABS(C1 - L) + ABS(H1 - C2) + ABS(C2 - L1) + ABS(H2 - C3) + ABS(C3 - L2) + ABS(H3 - C4) + ABS(C4 - L3) + ABS(H4 - C5) + ABS(C5 - L4) + ABS(H5 - C6) + ABS(C6 - L5) + ABS(H6 - C7) + ABS(C7 - L6) + ABS(H7 - C8) + ABS(C8 - L7) + ABS(H8 - C9) + ABS(C9 - L8) + ABS(H9 - C10) + ABS(C10 - L9)) / 20)

That is just this short snippet of the first formula.

ABS(C - C10) / ATR10

Bruce

the link provided contains other trading systems.

Can you supply the PCFs for these:

Historical Volitility(100)<=1.0

The regression trend line is the slope of the regression line fit to the price data (closing prices). A value of 1.0 represents a flat line. A value of 1.05 indicates a line that grew 5% over the time frame. A value of .95 would represent a line that lost 5% in value over the time frame. The threshold in the system ensures that our stock has a general upward trend over the time frames.

Thanks

All of the following formulas are for TC2000 v17.

Let me start then by providing the Trend Strength Index for 1 bar ago.

AVG(AVG((C1 - C11) / ATR10.1, 10), 100)

PCF#1:

1600 * ABS((SUM(LOG(C1 / C2) ^ 2, 100) - LOG(C1 / C101) ^ 2 / 100) / 100) ^ .5 <= 1

Although I'm wondering if they don't convert it into a percentage and it needs to be <= 100 instead.

PCF#2:

O + ATR20.1 / 2

PCF#3:

O - 1.5 * ATR20.1

PCF#4:

(O - AVGC10.1) / ATR20.1 <= -1

PCF#5:

123 * FAVGC20.1 > 124 * AVGC20.1

PCF#6:

123 * FAVGC50.1 > 124 * AVGC50.1

PCF#4:

(O - C1) / ATR20.1 <= -1

This should be:

(O - AVGC10.1) / ATR20.1 <= -1

PCF#5:

123 * FAVGC20.1 > 124 * AVGC20.1

PCF#6:

123 * FAVGC50.1 > 124 * AVGC50.1

How do you determine the "123" and "124"?

I assume they check for the 1.05 slope?

Other slopes could be checked by changing those variables?

Thanks

That was a simplification of the following. You probably don't really need to simplify it. Any efficiency gained is probably fairly small.

3 * FAVGCx.z - 2 * AVGCx.z > 1.05 * (4 * AVGCx.z - 3 * FAVGCx.z)

Where x is the period and z is the offset.