FunctionParameter

[futurenets]

If I backtest a study that takes a string parameter e.g.

var fp5 = new FunctionParameter("nParm5", FunctionParameter.STRING);

and then re-backtest on the same chart using a different study that takes a number parameter e.g.

var fp5 = new FunctionParameter("nParm5", FunctionParameter.NUMBER);

I get the string options appearing in the backtest parameter box from the first study.

Apologies for not providing an example but a little short on time.

[ACM]

Paul
I tried the following two efs(s) and the parameters seem to switch accordingly. I also tried adding function parameters (up to three) and swapping them as in the enclosed examples with the same results.
You may want to post a sample of what you are using
Alex

var vMA = null;

function preMain() {
    setPriceStudy(true);
    setStudyTitle("String");
        
    var fp1 = new FunctionParameter("Param1", FunctionParameter.STRING);
    fp1.addOption("High");
    fp1.addOption("Low");
    fp1.addOption("Close");
    fp1.addOption("Open");
    fp1.setDefault("Close");
}
function main(Param1) {
    
    if (vMA == null) vMA = new MAStudy(10, 0, Param1, MAStudy.SIMPLE);
    
    if(Strategy.isLong()==false&&close(-1)<vMA.getValue(MAStudy.MA,-1)&&close()>vMA.getValue(MAStudy.MA))
    Strategy.doLong("Long",Strategy.CLOSE,Strategy.THISBAR);
    if(Strategy.isLong()==true&&close(-1)>vMA.getValue(MAStudy.MA,-1)&&close()<vMA.getValue(MAStudy.MA))
    Strategy.doSell("Sell",Strategy.CLOSE,Strategy.THISBAR);

return vMA.getValue(MAStudy.MA);
} 

var vMA = null;

function preMain() {

    setStudyTitle("Number");
    
    var fp1 = new FunctionParameter("Param1", FunctionParameter.NUMBER);
    fp1.addOption(5);
    fp1.addOption(10);
    fp1.addOption(20);
    fp1.setDefault(10);
}
function main(Param1) {
    
    if (vMA == null) vMA = new MAStudy(Param1, 0, "Close", MAStudy.SIMPLE);
    
    if(Strategy.isLong()==false&&close(-1)<vMA.getValue(MAStudy.MA,-1)&&close()>vMA.getValue(MAStudy.MA))
    Strategy.doLong("Long",Strategy.CLOSE,Strategy.THISBAR);
    if(Strategy.isLong()==true&&close(-1)>vMA.getValue(MAStudy.MA,-1)&&close()<vMA.getValue(MAStudy.MA))
    Strategy.doSell("Sell",Strategy.CLOSE,Strategy.THISBAR);

return vMA;
} 

[futurenets]

thanks Alexis

The study has 8 or so functionparameters.

I'm a little under pressure at the moment with another project but will try and setup an example.