performancecomp.efs

[jmarc]

PerformanceComp.efs

hi.. how insert up to 20 symbols using this efs
tx

[waynecd]

Try:

/****************************************************************************************************
Copyright © eSignal, a division of Interactive Data Corporation. 2003. All rights reserved. 
This sample eSignal Formula Script (EFS) may be modified and saved under a new 
filename; however, eSignal is no longer responsible for the functionality once modified.
eSignal reserves the right to modify and overwrite this EFS file with each new release.
*****************************************************************************************************/
/** Updated:  01/14/03   **/
/** added more symbols 20130802 **/
debugClear();
function preMain() {
    setStudyTitle("\% Performance  ... Add Symbol(s)");
    var aFPArray = new Array();
    var x = 0;
    aFPArray[x] = new FunctionParameter("Symbol0", FunctionParameter.STRING);
    with(aFPArray[x++]){
        setDefault(getSymbol());
    }
    for(x=1; x<20; x++) {
        var fpLabel = "Symbol"+x;
        aFPArray[x] = new FunctionParameter( fpLabel, FunctionParameter.STRING); 
        with(aFPArray[x++]){
            setDefault( );
        }
    } 
    askForInput();
}

var vLoaded = false;
var vBase;
var b;
var vSymbols;
var vCalcStart = false;
function main(Symbol0,Symbol1,Symbol2,Symbol3,Symbol4,Symbol5,Symbol6,Symbol7,Symbol8,Symbol9,Symbol10,Symbol,Symbol11,Symbol12,Symbol13,Symbol14,Symbol15,Symbol16,Symbol17,Symbol18,Symbol19) {
    var cntr=0;
    if (vLoaded == false) {
        vSymbols=[];
        var ClrArr=[Color.blue,Color.red,Color.green,Color.cyan,Color.lime,Color.magenta,Color.brown,Color.black,Color.purple,Color.teal,
        Color.aqua,Color.darkgreen,Color.darkgrey,Color.khaki,Color.maroon,Color.navy,Color.olive,Color.RGB(210,193,522),Color.RGB(170,2,40),Color.RGB(255,224,46)];
        var i,a1;
        for(i=0;i<20;i++){
            a1="Symbol"+(i);
            a1 = eval(a1);
            if(a1!=null){
                vSymbols.push([a1]);
                setCursorLabelName(vSymbols[cntr] + " \% Return: ", cntr);
                setDefaultBarFgColor(ClrArr[cntr], cntr);
                cntr++;
            }
        }
        if(vSymbols.length==1) setCursorLabelName("Add Symbols",1);
        else setStudyTitle("\% Performance " + vSymbols[0] + " vs. ");
        addBand(0, PS_SOLID, 2, Color.grey, "0");
        b = new Array(vSymbols.length);
        vBase = new Array(vSymbols.length);
        for (i = 0; i < vSymbols.length; ++i) {
            vBase[i] = 100;
        }
        adj();
        vLoaded = true;
        vCalcStart = false;
    }

    if (getBarState() == BARSTATE_NEWBAR) {
        if(vSymbols.length>1){
            for (cntr = 0; cntr < vSymbols.length; ++cntr) {
                if (vSymbols[cntr] != null) {
                    var vSym = vSymbols[cntr]+"";
                    var p0 = close(0,vSym);
                    if (!vCalcStart) {
                        var p1 = open(-1,vSym);
                    } else {
                        var p1 = close(-1,vSym);
                    }
                    if (p0 != null && p1 != null) {
                        var tReturn = ret_calc(p0, p1);
                        vBase[cntr] += (vBase[cntr] * tReturn);
                    }
                }
            }
        }
        vCalcStart = true;
        adj();
    }
    return b;
}
function adj() {
    var cntr=0;
    for(cntr = 0; cntr < vSymbols.length; ++cntr) {
        b[cntr] = (vBase[cntr] - 100);
    }
}

function ret_calc(pNew,pOld){
    var r = ((pNew-pOld)/pOld);
    return r;
} 

Wayne