Default lot size

[glay]

Hi on some days I want to modify my default lot size thats passed from the back tester config menu. This is what I did and I can not get it to work.

var size = Strategy.getDefaultLotSize()

It always retruns a value of 100 no matter what.

I have it set to 5 in my menu (futures). Not sure where its getting this value.
Any ideas?
thx

Geoff

[ACM]

Geoff
Strategy.getDefaultLotSize() uses the value set in the Back Testing window (see enclosed image).



To use a different lot size you can either set that in the Back Testing window or add a variable in your code which you then use as the optional nLotSize parameter in the various Strategy methods (ie doLong(), do Short(), doCover(), etc). Enclosed is a basic example of this.
For more detailed information and examples you may want to reveiew the Back Testing Tutorial1: Introduction to the Strtagey Object which is available in the EFS KnowledgeBase
Alex

function preMain(){
    setPriceStudy(true);
    setCursorLabelName("MA");
}
 
var Study = null;
 
function main(){
 
    if(Study==null) Study = sma(10);
    
    var myLotSize = 5;
    
    if(!Strategy.isLong()){
        if(close(0)>Study.getValue(0)){
            Strategy.doLong("Long",Strategy.CLOSE,Strategy.THISBAR, myLotSize);
            drawText("Long",BelowBar1,Color.blue,"long"+getCurrentBarCount());
        }
    }
    if(Strategy.isLong()){
        if(close(0)<Study.getValue(0)){
            Strategy.doSell("Close Long",Strategy.CLOSE,Strategy.THISBAR, myLotSize);
            drawText("XLong",AboveBar1,Color.red,"xlong"+getCurrentBarCount());
        }
    }
    
    return Study.getValue(0);
} 

[glay]

Friday trading

Thanks!! Got that working. I had to move the statement to main from premain.