Stochastics

[dekko]

Hello

Can anyone confirm if the moving averages within stochastics can be modified to exponential rather than the default simple.

Thanks

[ACM]

Re: Stochastics

dekko
The builtin Stochastic functions do not offer that option however you can easily modify the StochasticK and StochasticD scripts [which are in the Library folder of Formulas] that calculate the Stochastic indicator without using the builtin functions and set them to use exponential instead of simple moving averages
Alex

Originally posted by dekko
Hello

Can anyone confirm if the moving averages within stochastics can be modified to exponential rather than the default simple.

Thanks

[dekko]

Hi Alexis

Thanks for the quick reply.

How do I do this exactly out of interest? Are you able to provide steps?

Thanks

[ACM]

dekko
Using the EFS Editor open the formulas I indicated in my prior message and replace sma [in line 48 of the StochasticK.efs and in line 34 of the StochasticD.efs] with ema
Then save each formula
Alex

Originally posted by dekko
Hi Alexis

Thanks for the quick reply.

How do I do this exactly out of interest? Are you able to provide steps?

Thanks

[dekko]

Cheers once again Alexis

Ive done this and it now show stochs D & K as 2 separate stochs indicators. Is there anyway to consolidate these into 1 indicator just liek the standard stochs?

Thanks

[ACM]

dekko
The simplest solution that does not require any coding and that you can easily implement with a couple of mouse clicks through Edit Studies is to overlay one study over the other and set both studies to use the same scale
Alternatively edit the StochasticD.efs to return both the %K and %D plots by replacing the return statement in line 36 with
return new Array (xStochK.getValue(0), xStochD.getValue(0));
You will then need to add the necessary statements in the preMain() function to assign a name to the Cursor label, color the plot etc. If you are unfamiliar on how to do this then I would suggest that you review the Beginner Tutorials 1-4 which are in the Help Guides and Tutorials-> Beginner Tutorials folder of the EFS KnowledgeBase
Alex

Originally posted by dekko
Cheers once again Alexis

Ive done this and it now show stochs D & K as 2 separate stochs indicators. Is there anyway to consolidate these into 1 indicator just liek the standard stochs?

Thanks

[James 88]

Try this. I quite like the %D as an expontential ma. I'm only an efs beginner, so it may have errors, thatsaid seems ok. nb. I've set defaults to 20(3)10.

var fpArray = new Array();

function preMain() {

    setPriceStudy(false);
    setStudyTitle("Stochastic e");
    setCursorLabelName("%K",0);
    setCursorLabelName("%D e",1);
    setDefaultBarFgColor(Color.blue, 0);
    setDefaultBarFgColor(Color.red, 1);
    setPlotType(PLOTTYPE_LINE,0);
    setPlotType(PLOTTYPE_LINE,1);
    setDefaultBarThickness(1,0);
    setDefaultBarThickness(1,1);
    askForInput();
        
    var x=0;
    fpArray[x] = new FunctionParameter("KLength", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setName("%K");
        setLowerLimit(1);        
        setDefault(20);
    }
    fpArray[x] = new FunctionParameter("KSmoothing", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setName("%KSmooth");
        setLowerLimit(1);        
        setDefault(3);
    }
    fpArray[x] = new FunctionParameter("DLength", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setName("%D");
        setLowerLimit(1);        
        setDefault(10);
    }
    fpArray[x] = new FunctionParameter("Symbol", FunctionParameter.STRING);
    with(fpArray[x++]){
        setDefault();
    }
    fpArray[x] = new FunctionParameter("Interval", FunctionParameter.STRING);
    with(fpArray[x++]){
        setDefault();
    }
    fpArray[x] = new FunctionParameter("Upper", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setLowerLimit(0);
        setDefault(80); 
    }
    fpArray[x] = new FunctionParameter("Lower", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setLowerLimit(0);
        setDefault(20); 
    }
    fpArray[x] = new FunctionParameter("Params", FunctionParameter.BOOLEAN);
    with(fpArray[x++]){
        setName("Show Parameters");
        setDefault(false);
    }
}

var bInit = false;
var xStochK = null;
var xStochD = null;

function main(KLength,KSmoothing,DLength,Symbol,Interval,Upper,Lower,Params) {

    if(bInit == false){
        if(Symbol == null) Symbol = getSymbol();
        if(Interval == null) Interval = getInterval();
        var vSymbol = Symbol+","+Interval;
        xStochK = stochK(KLength,KSmoothing,DLength,sym(vSymbol));
        xStochD = ema(DLength, xStochK);
        addBand( Upper, PS_SOLID, 1, Color.grey,"Upper");
        addBand( Lower, PS_SOLID, 1, Color.grey,"Lower");
        setShowTitleParameters(eval(Params));
        bInit = true;
    }

    return new Array (getSeries(xStochK),getSeries(xStochD));
}