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  • symOverlay2.efs

    File Name: symOverlay2.efs

    Description:
    Overlays a symbol as a price study and auto scales the overlay symbol's prices to match the price levels of your chart's symbol.

    Formula Parameters:
    nSymbol: Enter a symbol for comparison. Default is set to $SPX.

    nFactor: Multiplier that adjusts nSymbol to match the price level of the chart’s symbol

    Notes:
    The overlay symbol and nFactor for scaling can be changed via the “Edit Studies” option. The initial nFactor is based on the first (oldest) bar in your chart. It is recommended to apply a custom time template to your chart that limits the number of days or bars loaded into your chart. The current value of the nFactor is displayed in the cursor label window.

    Download File:
    symOverlay2.efs




    EFS Code:
    PHP Code:
    /*******************************
    Provided By : eSignal. (c) Copyright 2003
    *******************************/
    var vLoaded false;

    function 
    preMain() {
        if (
    vLoaded == false) {
            
    setPriceStudy(true);
            
    setDefaultBarThickness(2);
            
    setDefaultBarFgColor(Color.green);
        } else {
            
    setCursorLabelName(vSymbol);
            
    setStudyTitle("Overlay: ");
        }
    }

    var 
    vSymbol "";
    var 
    vSym "";
    var 
    vInterval 0;
    var 
    str = new String();
        
    function 
    main(nSymbolnFactor){
        if (
    vLoaded == false) {
            if (
    nSymbol == null)
                
    nSymbol "$SPX";
            
    vInterval getInterval();    
            if (
    nFactor == null) {
                var 
    close();
                if (
    == null) {
                    return;
                }
                var 
    c1 close(01nSymbol);
                if (
    c1 == null) {
                    return;
                }
                
    nFactor = (c/c1);
                
    nFactor *= 10000
                nFactor 
    Math.round(nFactor);
                
    nFactor /= 10000
                str 
    nFactor;
            } else {
                var 
    vFactor nFactor+'';
                var 
    strLength vFactor.length
                
    var de false;
                for (
    0strLength; ++i) {
                    
    str += vFactor.charAt(i)
                    if (
    vFactor.charAt(i) == ".") {
                        
    de true;
                    }
                }
                if (
    de == false) {
                    
    str += ".0"
                
    }
            }
            
    vSym = (str nSymbol "," vInterval);
            
    vLoaded true;
            
    vSymbol = (str " x " nSymbol);
            
    preMain();
        }
        
        var 
    close(01vSym);
        if (
    == null) {
            return;
        }

        return 
    v;

    Jason K.
    Project Manager
    eSignal - an Interactive Data company

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