MACDColorHist.efs

[eSignal_JasonK]

File Name: MACDColorHist.efs (MACD Colored Histogram)

Description:
Colors MACD histogram green when rising, red when falling. All inputs to MACD are configurable including histogram color. The display of the MACD histogram, Signal, MACD and MACD drop-lines can be turned on/off individually. The color of the drop-lines will match the up/down colors of the histogram up/down color settings. When the MACD is positive, the drop-down lines will be the up color and down color when the MACD is negative.

Formula Parameters:
Fast Length: Default is 12
Slow Length: Default is 26
Smoothing Length: Default is 9
Price Source: Default is Close, [Open, High, Low, Close, HL/2, HLC/3, OHLC/4]
MA Type: Default is SMA, [SMA, EMA]
MACD Hist Up Color: Default is green
MACD Hist Down Color: Default is red
MACD Color: Default is red
MACD Sig Color: Default is blue
Display Histogram: Yes, [Yes, No]
Display MACD: Yes, [Yes, No]
Display Signal: Yes, [Yes, No]
Display Drop Lines: Yes, [Yes, No]

Notes:


Download File:
MACDColorHist.efs




EFS Code:

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

/***  Updated 12/1/2003  ***
    
*Added FunctionParameter objects for user defined inputs.
*Added drop-down lines to the MACD where the color will 
 match the up/down colors of the histogram up/down color 
 settings.  When MACD is positive, drop-down lines will be 
 the up color and down color when the MACD is negative.
*Added options to enable/disable MACD histogrram, Signal, 
 MACD and MACD drop-lines.
    
    
***************************/

function preMain() {
    setStudyTitle("Color MACD Histogram ");
    setCursorLabelName("MACD", 0);
    setCursorLabelName("MACD", 1);
    setCursorLabelName("MACD Sig", 2);
    setCursorLabelName("MACD Hist", 3);
    setDefaultBarFgColor(Color.blue, 0);
    setDefaultBarFgColor(Color.blue, 1);
    setDefaultBarFgColor(Color.red, 2);
    setDefaultBarFgColor(Color.magenta, 3);
    setDefaultBarThickness(4, 3);
    setPlotType(PLOTTYPE_LINE, 0);
    setPlotType(PLOTTYPE_HISTOGRAM, 1);
    setPlotType(PLOTTYPE_LINE, 2);
    setPlotType(PLOTTYPE_HISTOGRAM, 3);
    
    addBand(0, PS_SOLID, 1, Color.black, "zero");
    
    var fp1 = new FunctionParameter("nFast", FunctionParameter.NUMBER);
    fp1.setName("Fast Length");
    fp1.setLowerLimit(1);
    fp1.setDefault(12);
    
    var fp2 = new FunctionParameter("nSlow", FunctionParameter.NUMBER);
    fp2.setName("Slow Length");
    fp2.setLowerLimit(1);
    fp2.setDefault(26);

    var fp3 = new FunctionParameter("nSmoothing", FunctionParameter.NUMBER);
    fp3.setName("Smoothing Length");
    fp3.setLowerLimit(1);
    fp3.setDefault(9);

    var fp4 = new FunctionParameter("PriceSource", FunctionParameter.STRING);
    fp4.setName("Price Source");
    fp4.addOption("Open");
    fp4.addOption("High");
    fp4.addOption("Low");
    fp4.addOption("Close");
    fp4.addOption("HL/2");
    fp4.addOption("HLC/3");
    fp4.addOption("OHLC/4");
    fp4.setDefault("Close");

    var fp5 = new FunctionParameter("nType", FunctionParameter.STRING);
    fp5.setName("MA Type");
    fp5.addOption("SMA");   //true
    fp5.addOption("EMA");   //false
    fp5.setDefault("SMA");
    
    var fp6 = new FunctionParameter("nColorUp", FunctionParameter.COLOR);
    fp6.setName("MACD Hist Up Color");
    fp6.setDefault(Color.green);
    
    var fp7 = new FunctionParameter("nColorDn", FunctionParameter.COLOR);
    fp7.setName("MACD Hist Down Color");
    fp7.setDefault(Color.red);
    
    var fp8 = new FunctionParameter("cMACD", FunctionParameter.COLOR);
    fp8.setName("MACD Color");
    fp8.setDefault(Color.red);

    var fp9 = new FunctionParameter("cMACDsig", FunctionParameter.COLOR);
    fp9.setName("MACD Sig Color");
    fp9.setDefault(Color.blue);

    var fp10 = new FunctionParameter("bHist", FunctionParameter.STRING);
    fp10.setName("Display Histogram");
    fp10.addOption("Yes");
    fp10.addOption("No");
    fp10.setDefault("Yes");

    var fp11 = new FunctionParameter("bMACD", FunctionParameter.STRING);
    fp11.setName("Display MACD");
    fp11.addOption("Yes");
    fp11.addOption("No");
    fp11.setDefault("Yes");

    var fp12 = new FunctionParameter("bSignal", FunctionParameter.STRING);
    fp12.setName("Display Signal");
    fp12.addOption("Yes");
    fp12.addOption("No");
    fp12.setDefault("Yes");

    var fp13 = new FunctionParameter("bDropLines", FunctionParameter.STRING);
    fp13.setName("Display Drop Lines");
    fp13.addOption("Yes");
    fp13.addOption("No");
    fp13.setDefault("Yes");
}

var study = null;
var vColor = null;
var vColorUp = null;
var vColorDn = null;
var vHist = null;
var vHist1 = null;
var bEdit = true;

function main(nFast, nSlow, nSmoothing, PriceSource, nType, nColorUp, nColorDn, 
                cMACD, cMACDsig, bHist, bMACD, bSignal, bDropLines) {
    if (study == null || bEdit == true) {
        if (nFast == null) nFast = 12;
        if (nSlow == null) nSlow = 26;
        if (nSmoothing == null) nSmoothing = 9;
        if (PriceSource == null) PriceSource = "Close";
        if (nType == null) {
            nType = false;
        } else if (nType == "SMA") {
            nType = true;
        } else {
            nType = false;
        }
        if (nColorUp == null) {
            vColorUp = Color.green;
        } else {
            vColorUp = nColorUp;
        }
        if (nColorDn == null) {
            vColorDn = Color.red;
        } else {
            vColorDn = nColorDn;
        }
        study = new MACDStudy(nFast, nSlow, nSmoothing, PriceSource, nType);
        setDefaultBarFgColor(cMACD, 0);
        setDefaultBarFgColor(cMACD, 1);
        setDefaultBarFgColor(cMACDsig, 2);
        setDefaultBarFgColor(cMACDsig, 3);
        bEdit = false;
    }
    
    if (getBarState() == BARSTATE_NEWBAR && vHist != null) {
        vHist1 = vHist;
    }
    
    vHist = study.getValue(MACDStudy.HIST);
    if (vHist == null)
        return;
    var vMACD = study.getValue(MACDStudy.MACD);
    if (vMACD == null)
        return;
    var vSig = study.getValue(MACDStudy.SIGNAL);
    if (vSig == null)
        return;
    
    if (vHist1 != null && vHist >= vHist1) {
        vColor = vColorUp;
    } else if (vHist1 != null && vHist < vHist1) {
        vColor = vColorDn;
    }
    
    if (vMACD < 0) setBarFgColor(nColorDn, 1);
    if (vMACD >= 0) setBarFgColor(nColorUp, 1);
    if (vColor != null) {
        setBarFgColor(vColor, 3);
    }
    var vHdisplay = vHist.toFixed(2)*1;
    if (bHist == "No") vHdisplay = vHdisplay+"";
    var vMdisplay = vMACD.toFixed(2)*1;
    if (bMACD == "No") vMdisplay = vMdisplay+"";
    var vMdisplay1 = vMACD.toFixed(2)*1;
    if (bDropLines == "No") vMdisplay1 = vMdisplay1+"";
    var vSdisplay = vSig.toFixed(2)*1;
    if (bSignal == "No") vSdisplay = vSdisplay+"";
    
    return new Array(vMdisplay, vMdisplay1, vSdisplay, vHdisplay);
}