Pring’s Trend Deviation Script

[Louis]

Hi guys,

Please see the script below.

//Calculate Moving Averages MA1 = MA(BARS=21, STYLE=Exponential, CALC=Close) ; MA2 = MA(BARS=63, CALC=Close, STYLE=Exponential) ; //Calculate Output Plots Plot1 = MA1 / MA2 ; Plot2 = MA(Plot1, BARS=9, CALC=Close, STYLE=Exponential) ; Plot3 = (Plot1 - Plot2) ; //Define Output Plots Plot1.Linestyle = Solid; Plot1.Color = Black; Plot1.LineWidth = 2; Plot2.Linestyle = Dash; Plot2.Color = Red; Plot3.Plotstyle = Histogram; Plot3.Color = Gray;

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//Calculate Moving Averages MA1 = MA(BARS=21, STYLE=Exponential, CALC=Close) ; MA2 = MA(BARS=63, CALC=Close, STYLE=Exponential) ; //Calculate Output Plots Plot1 = MA1 / MA2 ; Plot2 = MA(Plot1, BARS=9, CALC=Close, STYLE=Exponential) ; Plot3 = (Plot1 - Plot2) ; //Define Output Plots Plot1.Linestyle = Solid; Plot1.Color = Black; Plot1.LineWidth = 2; Plot2.Linestyle = Dash; Plot2.Color = Red; Plot3.Plotstyle = Histogram; Plot3.Color = Gray;

Plots 1 and 2 work perfectly – see picture 1. The problem I am having is when trying to display  a histogram, called plot 3, which will subtract plot 2 from plot 1. Picture 2 is what happens. Please advise on how to correct this script so the histogram displays properly.

many thanks!

• This topic was modified 1 month ago by Louis Spector.

[Trevor R]

Hi Louis,

Your line Plot3 = (Plot1 – Plot2) ; is trying to subtract one array from another array. Plots are arrays and that doesn’t work. You need to do the subtraction on the creation of Plot3:

Plot3 = (MA1 / MA2) – (MA(Plot1, BARS=9, CALC=Close, STYLE=Exponential) );

Note that the values for Plot 3 are very small compared to Plot1 and Plot2, so to see the values all on one view you would need to multiply Plot3 by some factor, say 100,  like this:

Plot3 = ((MA1 / MA2) – (MA(Plot1, BARS=9, CALC=Close, STYLE=Exponential) ) )* 100;

which will produce the result shown in the following screenshot:

Cheers

Trevor

• This reply was modified 1 month ago by Trevor R.

[Louis]

Thanks for letting me know. I want this think to look like a MACD, or PPO, or KST. The only difference in my formula I am doing a division to calculate plot 1 instead of subtraction or addition. Your solution does not allow plots 1 and 2 to be see as they are in picture 1 above. Any ideas?

• This reply was modified 1 month ago by Louis Spector.

[Trevor R]

Hi Louis,

See if this code results in what you are looking for:

//Calculate Moving Averages MA1 = MA(BARS=21, STYLE=Exponential, CALC=Close); MA2 = MA(BARS=63, CALC=Close, STYLE=Exponential); //Calculate Output Plots //Plot1 = (MA1 / MA2); Plot1 = (MA1 / MA2) - 1; Plot2 = MA(Plot1, BARS=9, CALC=Close, STYLE=Exponential); //Plot3 = (Plot1 - Plot2); Plot3 = ((MA1 / MA2 ) - 1) - (MA(Plot1, BARS=9, CALC=Close, STYLE=Exponential)); //Define Output Plots Plot1.Linestyle = Solid; Plot1.Color = Black; Plot1.LineWidth = 2; Plot2.Linestyle = Dash; Plot2.Color = Red; Plot3.Plotstyle = Histogram; Plot3.Color = Gray;

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//Calculate Moving Averages MA1 = MA(BARS=21, STYLE=Exponential, CALC=Close); MA2 = MA(BARS=63, CALC=Close, STYLE=Exponential); //Calculate Output Plots //Plot1 = (MA1 / MA2); Plot1 = (MA1 / MA2) - 1; Plot2 = MA(Plot1, BARS=9, CALC=Close, STYLE=Exponential); //Plot3 = (Plot1 - Plot2); Plot3 = ((MA1 / MA2 ) - 1) - (MA(Plot1, BARS=9, CALC=Close, STYLE=Exponential)); //Define Output Plots Plot1.Linestyle = Solid; Plot1.Color = Black; Plot1.LineWidth = 2; Plot2.Linestyle = Dash; Plot2.Color = Red; Plot3.Plotstyle = Histogram; Plot3.Color = Gray;

This is what is gives me:

Cheers

Trevor

[Louis]

Hi Trevor. You nailed it! I was trying to multiply plot3, but your approach of subtracting 1 from plot1 was a great idea! Thank you so much.

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