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EasyLanguage SuperTrend indicator
Started:March 25th, 2010 (03:01 AM) by Big Mike Views / Replies:38,117 / 76
Last Reply:October 23rd, 2014 (06:56 AM) Attachments:9

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EasyLanguage SuperTrend indicator

Old March 25th, 2010, 03:01 AM   #1 (permalink)
Administrator: 'da Big Dawg
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EasyLanguage SuperTrend indicator

Here is my version of a TradeStation/MultiCharts EasyLanguage SuperTrend indicator.

I made it a function so it could be called easily from a strategy.

Function:
 
Code
			
// SuperTrend function 
// March 25 2010
// Big Mike https://www.bigmiketrading.com

inputs
ATRLength(NumericSimple), ATRMult(NumericSimple), Strength(NumericSimple), STrend(NumericRef);

vars
ATR(0), 
avg(0), 
dn(0), 
up(0), 
trend(1), 
flag(0), 
flagh(0), 
ST(0),
hl(0); 


hl Highest(HighATRLength) - Lowest(LowATRLength);
ATR XAverage(hlATRLength);
avg = (XAverage(highStrength) + XAverage(lowStrength))/2;
up avg ATR
dn avg ATR

if 
up[1] and Highest(HighStrength)[1then
trend 
1
else if dn[1] and Lowest(LowStrength)[1then
trend 
= -1;


if 
trend and trend[1] > 0 then flag=else flag=0
if 
trend and trend[1] < 0 then flagh else flagh 0

if 
trend and dn dn[1then dn=dn[1];
if 
trend and up up[1then up=up[1];

if 
flag 1 then up avg ATR
if 
flagh 1 then dn avg ATR

if 
trend 1 then ST dn else ST up;
SuperTrend ST;
STrend trend
Please note, on my version I use personally, the line "avg = (XAverage(high, Strength) + XAverage(low, Strength))/2;" from above function uses a Jurik-like phased moving average, not XAverage(EMA). But I haven't posted that yet, so I just made this use XAverage instead. Replace with your favorite MA.

Indicator:
 
Code
			
// SuperTrend indicator
// March 25 2010
// Big Mike https://www.bigmiketrading.com 

inputs
ATRLength(9), ATRMult(1), Strength(9);

vars
strend(0),
st(0);

st SuperTrend(ATRLengthATRMultStrengthstrend);

Plot1(st,"Up");
Plot2(st,"Down");
Plot3(st,"SuperTrend",iff(strend 1,GetPlotColor(1),GetPlotColor(2))); 
To get the desired Indicator effect and control over plot colors that I wanted, I made Plot1 and Plot2 a real plot so you could precisely control the RGB color. You need to mark these plots as invisible once you setup the indicator! I will provide a screen shot below as an example.

Plot3 is the real plot, and it will be colored based on if trend is up or down.

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Here are some example screenshots:

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Old March 25th, 2010, 03:01 AM   #2 (permalink)
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Old March 26th, 2010, 12:43 AM   #3 (permalink)
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Is the name of the function "SuperTrend"?

In OEC we have to combine functions and indicator code into the same file and call the functions manually. Can't get her to compile using SuperTrend as the function name.... is this correct?

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Old March 26th, 2010, 12:45 AM   #4 (permalink)
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daedalus View Post
Is the name of the function "SuperTrend"?

In OEC we have to combine functions and indicator code into the same file and call the functions manually. Can't get her to compile using SuperTrend as the function name.... is this correct?

Yes, function name is SuperTrend.

I'm not sure about OEC sorry. If you have to combine them, try taking the function code but using the indicator inputs, then add the plots.. more or less.

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Old March 26th, 2010, 12:48 AM   #5 (permalink)
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Attached is a MultiCharts pla which includes the SuperTrend function, SuperTrend indicator, at the Hull Moving Average I was using. You can replace the Mov Avg (jtHMA) with whatever floats your boat.

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Attached Files
Register to download File Type: pla BMT SuperTrend.pla (9.3 KB, 572 views)
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Old April 1st, 2010, 09:10 AM   #6 (permalink)
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[...]
[...]
[...]
[...]


Last edited by frathom; April 4th, 2010 at 06:00 AM.
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Old July 5th, 2010, 02:12 PM   #7 (permalink)
Just starting out...
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Mike-

when does the ATR Mult come into play?



thanks

-Steve

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Old July 5th, 2010, 02:42 PM   #8 (permalink)
Administrator: 'da Big Dawg
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factory15 View Post
Mike-

when does the ATR Mult come into play?



thanks

-Steve

It doesn't, was a bug in the code I listed above. You just need to modify:
 
Code
			
up avg + (ATR*ATRMult); 

dn avg - (ATR*ATRMult); 
If you want to add it.

Mike


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Old July 5th, 2010, 04:03 PM   #9 (permalink)
Just starting out...
clifton, nj
 
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Thanks Mike...

if you dont mind me asking- as a CL guy, what numbers do you plug in for ATRLength and Strength typically? Do you find it works pretty well?

I converted this over to thinkscript and I think I've got it working...anxious to see it in action.

thanks again

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Old July 5th, 2010, 06:01 PM   #10 (permalink)
Administrator: 'da Big Dawg
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factory15 View Post
Thanks Mike...

if you dont mind me asking- as a CL guy, what numbers do you plug in for ATRLength and Strength typically? Do you find it works pretty well?

I converted this over to thinkscript and I think I've got it working...anxious to see it in action.

thanks again

I don't use indicators in my trading, sorry. But the defaults of the script were probably what I used when I wrote it.

Mike


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