efsExternal() & efsInternal() return values

[waynecd]

Hi,

As I understand it since the return values from an efsExternal() or efsInternal call are saved to a variable then only one value or series will be returned.

In other words, if I use efsExternal() (with appropriate parameters) to call an efs that returns, lets say, 3 moving averages; then the efsExternal() call would only retrieve the first moving avg series.

Is this correct?

thanks
Wayne

[Guest]

Hi Wayne,

Once you create a series object where the series has multiple return values, create a series for each of the return values using the getSeries() command (with appropriate parameters).

[waynecd]

Thanks Steve,

Is the syntax you refer to the same as the following sample?

From thread at http://forum.esignalcentral.com/show...threadid=27514

main(i1) {

myStudy = efsInternal ("makinTheOutput",i1);

var myStudy1 = getSeries(myStudy,0);

var myStudy2 = getSeries(myStudy,1);



//now i have an SeriesObject in myStudy1 and myStudy2

}



makinTheOutput(i1){

CurLab = call("outputLessFunc",i1);

return new Array (CurLab[0], CurLab[1]);

}


Thanks

Wayne

[waynecd]

Thanks anyway,

I found my answer in the following post:

http://forum.esignalcentral.com/showthread.php?s=&threadid=19373&highlight=safwan

I must have missed it in my first search.

Wayne

[ACM]

waynecd
FWIW the description of the getSeries() function is provided together with specific examples of its use in this article in the EFS KnowledgeBase
Alex

Originally posted by waynecd
Thanks anyway,

I found my answer in the following post:

http://forum.esignalcentral.com/showthread.php?s=&threadid=19373&highlight=safwan

I must have missed it in my first search.

Wayne

[waynecd]

Thank you Alexis.

[Guest]

Hi Wayne,

Sorry for the late reply, I was away.

I had put together an efs to demonstrate things, but it seems as if your past that.


Regardless, hope it provides some insight.

/*******************************************
By Steve Hare © August 2008       
Use and/or modify this code freely. If you redistribute it
please include this and/or any other comment blocks and a 
description of any changes you make.  

efs created to demonstrate how to obtain multiple series from an 
efsInternal Series that has multiple return values.
********************************************/

function preMain() {
 setPriceStudy(true);
 setStudyTitle("efsInternal Example");
 //setShowCursorLabel(false); // hides the variables name from the Cursor Window
 setShowTitleParameters(false);
 setCursorLabelName("high1",0); 
 setCursorLabelName("low1",1); 
 setCursorLabelName("bar1",2); 
 setCursorLabelName("hms1",3); 
 setDefaultBarFgColor(Color.blue, 0);
 setDefaultBarFgColor(Color.red, 1);
 setDefaultBarFgColor(Color.blue, 2);
 setDefaultBarFgColor(Color.green, 3);
 setDefaultBarThickness(2,0);
 setDefaultBarThickness(2,1);
 //~ setIntervalsBackfill(true); 
}
debugClear();
var bInit=false;
var example1,hms1,high1,low1,close1,raw1,bar1;

function main() {
 
 if(!bInit){
  example1=efsInternal("Example",2,inv("10")); // I chose 10 minutes as the external interval, try it on a lesser interval chart
  hms1=getSeries(example1,0);
  high1=getSeries(example1,1);
  low1=getSeries(example1,2);
  close1=getSeries(example1,3);
  raw1=getSeries(example1,4);
  bar1=getSeries(example1,5);
  bInit=true;
 }

 //~ I return the bar1 seriea and the hms1 series as strings, placing them onto the cursor window and not the chart
 return new Array(high1,low1,(bar1.getValue(0)+""),(hms1.getValue(0)+""));
}

function Example(n){  // retains constant value
 var hms=(hour(0)*100+minute(0))*100+second(0);
 //~ note that I am adding the constant to the high and low values of the interval, 
 //~ make sure the constant is commensurate with the price values for proper display
 return new Array(hms,(high(0)+n),(low(0)-n),close(0),rawtime(0),getCurrentBarCount());
} 

[waynecd]

No worries Steve.

The explanations you add in the efs are very helpful.

It's a great example and I will add it to my samples archive for future reference.

Thanks again.

[Guest]

Hi Wayne,

Your most welcome.