Increasing/Decreasing Momentum

[eSignal]

File Name: MomIncDec.efs

Description:
Increasing/Decreasing Momentum

Formula Parameters:
Source: Close
Momentum Length: 14
Momentum SMA Length: 14
View: All
Line Thickness: 2
Increasing Color: Green
Decreasing Color: Blue

Notes:


Download File:
MomIncDec.efs



EFS Code:

/*********************************
Provided By:  
    eSignal (Copyright c eSignal), a division of Interactive Data 
    Corporation. 2008. All rights reserved. This sample eSignal 
    Formula Script (EFS) is for educational purposes only and may be 
    modified and saved under a new file name.  eSignal is not responsible
    for the functionality once modified.  eSignal reserves the right 
    to modify and overwrite this EFS file with each new release.

Description:        
    Increasing/Decreasing Momentum

Version:            1.0  10/29/2008

Formula Parameters:                     Default:
    Source                               Close
    Momentum Length                      14
    Momentum SMA Length                  14
    View                                 All
    Line Thickness                       2
    Increasing Color                     Green
    Decreasing Color                     Blue
    
Notes:
    

**********************************/


var fpArray = new Array();
var bInit = false;

function preMain() {

    setPriceStudy(true);
    setShowCursorLabel(false);
    setShowTitleParameters( false );
    
    setStudyTitle("Increasing/Decreasing Momentum");
    setColorPriceBars(true);    
   
    askForInput();
    var x=0;
    fpArray[x] = new FunctionParameter("Color1", FunctionParameter.COLOR);
    with(fpArray[x++]){
        setName("Increasing Color");
        setDefault(Color.green);
    }    
    fpArray[x] = new FunctionParameter("Color2", FunctionParameter.COLOR);
    with(fpArray[x++]){
        setName("Decreasing Color");
        setDefault(Color.blue);
    }    
    fpArray[x] = new FunctionParameter("MomLength", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setName("Momentum Length");
        setLowerLimit(1);        
        setDefault(14);
    }
    fpArray[x] = new FunctionParameter("MomAvgLength", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setName("Momentum SMA Length");
        setLowerLimit(1);        
        setDefault(14);
    }
    fpArray[x] = new FunctionParameter("Thickness", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setName("Line Thickness");
        setLowerLimit(1);        
        setDefault(2);
    }
    fpArray[x] = new FunctionParameter("Source", FunctionParameter.STRING);
    with(fpArray[x++]){
        setName("Source");
        addOption("open"); 
        addOption("high");
        addOption("low");
        addOption("close");
        addOption("hl2");
        addOption("hlc3");
        addOption("ohlc4"); 
        setDefault("close"); 
    }
    fpArray[x] = new FunctionParameter("View", FunctionParameter.STRING);
    with(fpArray[x++]){
        setName("View");
        addOption("Increasing"); 
        addOption("Decreasing");
        addOption("All"); 
        setDefault("All"); 
    }    
}

var xMomAvg = null;

function main(Source, MomLength, MomAvgLength, View, Thickness, Color1, Color2) {
var nMomAvg = 0;
var nMomAvg1 = 0;
    
    if ( bInit == false ) { 
        setDefaultBarThickness(Thickness, 0);
        xMomAvg = sma(MomAvgLength, mom(MomLength, eval(Source)()));
        bInit = true; 
    } 

    if (getCurrentBarCount() < Math.max(MomLength, MomAvgLength)) return;
    
    nMomAvg = xMomAvg.getValue(0);
    nMomAvg1 = xMomAvg.getValue(-1);

    if (nMomAvg > nMomAvg1 && (View == "Increasing" || View == "All")) { //inc
        setPriceBarColor(Color1);    
    }

    if (nMomAvg < nMomAvg1 && (View == "Decreasing" || View == "All")) { //dec
        setPriceBarColor(Color2);    
    }

    return; 
}