MAofROC.efs

[eSignal_JasonK]

File Name: MAofROC.efs

Description:
Moving Average of Rate of Change oscillator.

Formula Parameters:
rocLength: Default is 21

rocPriceSource: Default is “Close”
valid inputs: Open, High, Low, Close, HL/2, HLC/3 and OHLC/4

Notes:


Download File:
MAofROC.efs




EFS Code:

/*********************************
Provided By : eSignal. (c) Copyright 2003
*********************************/


function preMain() {
    setStudyTitle("Moving Average of ROC");
    setCursorLabelName("MA", 0);
    setCursorLabelName("ROC", 1);
    setDefaultBarFgColor(Color.red, 0);
    setDefaultBarFgColor(Color.blue, 1);
    setPlotType(PLOTTYPE_HISTOGRAM, 1);
    setDefaultBarThickness(3, 1);
}

var MAstudy = null;
var ROCstudy = null;

function main(rocLength, rocPriceSource, maLength, maOffset, maType) {
    if (MAstudy == null || ROCstudy == null) {
        //check for valid inputs
        if (rocLength == null)
            rocLength = 21;
        if (rocPriceSource == null) {
            rocPriceSource = "Close";
        } else if(rocPriceSource == "C" || rocPriceSource == "O" || rocPriceSource == "H" || rocPriceSource == "L") {
            rocPriceSource = rocPriceSource;
        } else if(rocPriceSource == "Close" || rocPriceSource == "Open" || rocPriceSource == "High" || rocPriceSource == "Low") {
            rocPriceSource = rocPriceSource;
        } else if(rocPriceSource == "HL/2" || rocPriceSource == "HLC/3" || rocPriceSource == "OHLC/4") {
            rocPriceSource = rocPriceSource;
        } else {
            rocPriceSource = "Close";
        }
        ROCstudy = new ROCStudy(rocLength, rocPriceSource);

        if (maLength == null)
            maLength = 18;
        if (maOffset == null) {
            maOffset = 0;
        } else {
            maOffset = Math.round(maOffset);
        }
        if (maType == null) {
            maType = "MAStudy.SIMPLE";
        } else if(maType == "MAStudy.EXPONENTIAL" || maType == "MAStudy.SIMPLE" || maType == "MAStudy.WEIGHTED" || maType == "MAStudy.VOLUMEWEIGHTED") {
            maType = maType;
        } else {
            maType = "MAStudy.SIMPLE";
        }
        MAstudy = new MAStudy(maLength, maOffset, ROCstudy, ROCStudy.ROC, eval(maType));
    }
    
    var vMA = MAstudy.getValue(MAStudy.MA);
    var vROC = ROCstudy.getValue(ROCStudy.ROC);
    return new Array (vMA, vROC);
}