Noob Question

[toptrader]

I have copy and pasted a sample strategy found in eSignals help guide. The code is below. When I add the study to my chart, I do not see any buy/sell signals giving any indication that it is trading. However, when I run a backtest I do see trades generated. Am I doing something wrong?

var fpArray = new Array();
var bInit = false;

function preMain() {
    setPriceStudy(false);
    setStudyTitle("roCombined"); 
    setCursorLabelName("CCI MA Slow",0);
    setDefaultBarFgColor(Color.red,0);
    setCursorLabelName("CCI MA FAST",1);
    setDefaultBarFgColor(Color.blue,1);
    setColorPriceBars(true);
    setDefaultPriceBarColor(Color.grey);

    askForInput();
    var x = 0;
    fpArray[x] = new FunctionParameter("FastMA", FunctionParameter.NUMBER);
	with(fpArray[x++]) {
        setLowerLimit(1);		
        setDefault(10);
    }
    
    fpArray[x] = new FunctionParameter("SlowMA", FunctionParameter.NUMBER);
	with(fpArray[x++]) {
        setLowerLimit(1);		
        setDefault(20);
    }
}

var xSMA = null;
var xFMA = null;

function main(FastMA,SlowMA) {

    var nBarState = getBarState();
    
    if(nBarState == BARSTATE_ALLBARS) {
        if (FastMA == null) FastMA = 10;
        if (SlowMA == null) SlowMA = 20;
    }
    
    if (bInit == false) {
        var xCCI = cci(10);
        if (xCCI == null) return;
        xSMA = sma(SlowMA, xCCI);
        xFMA = sma(FastMA, xCCI);
        bInit = true;
    }

    if(getCurrentBarIndex()==0) return;
    
    var nSMA = xSMA.getValue(0);
    var nFMA = xFMA.getValue(0);
    
	if(nSMA < nFMA && !Strategy.isLong()) 
		Strategy.doLong("Long", Strategy.CLOSE, Strategy.THISBAR);

	if(nSMA > nFMA && !Strategy.isShort()) 
		Strategy.doShort("Short", Strategy.CLOSE, Strategy.THISBAR);

	if(Strategy.isLong())
       		setPriceBarColor(Color.lime);

	if(Strategy.isShort())
        	setPriceBarColor(Color.red);

	return new Array(nSMA, nFMA);
}

[ACM]

Re: Noob Question

toptrader
The formula is only set to generate the trades on historical bars for use by the back tester and evaluate if the strategy is long or short and paint the bars in lime or red accordingly
Alex

Originally posted by toptrader
I have copy and pasted a sample strategy found in eSignals help guide. The code is below. When I add the study to my chart, I do not see any buy/sell signals giving any indication that it is trading. However, when I run a backtest I do see trades generated. Am I doing something wrong?

var fpArray = new Array();
var bInit = false;

function preMain() {
    setPriceStudy(false);
    setStudyTitle("roCombined"); 
    setCursorLabelName("CCI MA Slow",0);
    setDefaultBarFgColor(Color.red,0);
    setCursorLabelName("CCI MA FAST",1);
    setDefaultBarFgColor(Color.blue,1);
    setColorPriceBars(true);
    setDefaultPriceBarColor(Color.grey);

    askForInput();
    var x = 0;
    fpArray[x] = new FunctionParameter("FastMA", FunctionParameter.NUMBER);
	with(fpArray[x++]) {
        setLowerLimit(1);		
        setDefault(10);
    }
    
    fpArray[x] = new FunctionParameter("SlowMA", FunctionParameter.NUMBER);
	with(fpArray[x++]) {
        setLowerLimit(1);		
        setDefault(20);
    }
}

var xSMA = null;
var xFMA = null;

function main(FastMA,SlowMA) {

    var nBarState = getBarState();
    
    if(nBarState == BARSTATE_ALLBARS) {
        if (FastMA == null) FastMA = 10;
        if (SlowMA == null) SlowMA = 20;
    }
    
    if (bInit == false) {
        var xCCI = cci(10);
        if (xCCI == null) return;
        xSMA = sma(SlowMA, xCCI);
        xFMA = sma(FastMA, xCCI);
        bInit = true;
    }

    if(getCurrentBarIndex()==0) return;
    
    var nSMA = xSMA.getValue(0);
    var nFMA = xFMA.getValue(0);
    
	if(nSMA < nFMA && !Strategy.isLong()) 
		Strategy.doLong("Long", Strategy.CLOSE, Strategy.THISBAR);

	if(nSMA > nFMA && !Strategy.isShort()) 
		Strategy.doShort("Short", Strategy.CLOSE, Strategy.THISBAR);

	if(Strategy.isLong())
       		setPriceBarColor(Color.lime);

	if(Strategy.isShort())
        	setPriceBarColor(Color.red);

	return new Array(nSMA, nFMA);
}