Stochastic_Histogram.efs

Stochastic_Histogram.efs    

File Name: Stochastic_Histogram.efs

Description:
Plots a histogram of the difference between the %K and %D lines.

Formula Parameters:

• nInputPercentK1: Default is 14
• nInputPercentK2: Default is 1
• nInputPercentD: Default is 3

Notes:
Default is for a "Fast Stochastic", but adjusting the nInputPercentK2 to 3 would make this a "Slow Stochastic".

Download File:
Stochastic_Histogram.efs


EFS Code:

/****************************************************************************************************
Copyright © eSignal, a division of Interactive Data Corporation. 2002. All rights reserved. 
This sample eSignal Formula Script (EFS) may be modified and saved under a new 
filename; however, eSignal is no longer responsible for the functionality once modified.
eSignal reserves the right to modify and overwrite this EFS file with each new release.
*****************************************************************************************************/

var study = null;

function preMain() {

    setStudyTitle("Stochastic Histogram");
    setCursorLabelName("Hist");
    
    // Bands
    addBand(0, PS_SOLID, 1, Color.black);
    
    setDefaultBarFgColor(Color.black);

    setPlotType(PLOTTYPE_HISTOGRAM);
    
}

function main(nInputPercentK1, nInputPercentK2, nInputPercentD) {
    
    //check for valid inputs
    if (nInputPercentK1 == null) {
        nInputPercentK1 = 14;
    }    
    else {
        nInputPercentK1 = Math.round(nInputPercentK1);
    }

    if (nInputPercentK2 == null) {
        nInputPercentK2 = 1;
    }    
    else {
        nInputPercentK2 = Math.round(nInputPercentK2);
    }
    
        if (nInputPercentD == null) {
        nInputPercentD = 3;
    }    
    else {
        nInputPercentD = Math.round(nInputPercentD);
    }
    
    // Create objects if first time around
    if (study == null) study = new StochStudy(nInputPercentK1, nInputPercentK2, nInputPercentD);

    var vFast = study.getValue(StochStudy.FAST);
    var vSlow = study.getValue(StochStudy.SLOW);
    
    var vHist = vFast - vSlow;
    
    if (vHist > 0) {
        setBarFgColor(Color.green);
    } else {
        setBarFgColor(Color.red);
    }
    
    return vHist;
}