Day Of Week Average

[eSignal]

File Name: DayOfWeekAverage.efs

Description:
Day Of Week Average

Formula Parameters:
Length: 13
Day Of Week: 5
The Day of the week to be Averaged
(1 = Mon, 2 = Tues, 3.....)
Smooth: 0
Defines a Raw or Smoothed Average
(0 = Smooth, 1 = Raw)
Price Data To Use: High



Notes:
This indicator plots the Moving Average of a specified price of a user
specified day of the week. The Study also plots a dot on the day of the
week that is being Averaged. This indicator is one of the best for measuring
the price change depending on the day of the week.


Download File:
DayOfWeekAverage.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:        
    DayOfWeek Average

Version:            1.0  09/23/2008

Notes:
    This indicator plots the Moving Average of a specified price of a user
    specified day of the week. The Study also plots a dot on the day of the
    week that is being Averaged. This indicator is one of the best for measuring
    the price change depending on the day of the week.    
   

Formula Parameters:                      Default:
    * Length                                  13
    * Day Of Week                              5 
        The Day of the week to be Averaged
        (1 = Mon, 2 = Tues, 3.....) 
    * Smooth                                   0
        Defines a Raw or Smoothed Average
        (0 = Smooth, 1 = Raw) 
    * Price Data To Use                      High
**********************************/

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


function preMain() {

    setPriceStudy(true);
    setStudyTitle("DayOfWeek Average");
    setCursorLabelName("DOWAvg", 0);
    setCursorLabelName("DayOWk", 1);
    setDefaultBarFgColor(Color.blue, 0);
    setDefaultBarFgColor(Color.cyan, 1);
    setDefaultBarThickness(2,0);
    setDefaultBarThickness(2,1);    
    setPlotType(PLOTTYPE_LINE, 0);
    setPlotType(PLOTTYPE_DOT, 1);

    var x=0;
    fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setLowerLimit(1);        
        setDefault(9);
    }

    fpArray[x] = new FunctionParameter("DayOfWeek", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setName("Day Of Week (Mon=1, Tue=2. etc)")
        setLowerLimit(1);        
        setDefault(5);
    }


    fpArray[x] = new FunctionParameter("Price", FunctionParameter.STRING);
    with(fpArray[x++]){
        setName("Price Data To Use");
        addOption("open"); 
        addOption("high");
        addOption("low");
        addOption("close");
        addOption("hl2");
        addOption("hlc3");
        addOption("ohlc4"); 
        setDefault("high"); 
    }
}

var DOWA = null;
var xMyPrice = null;
var DayOWkAvg = 0;
var DayOWkAvg_1 = 0;


function main(Length, Price, DayOfWeek){

    if (Price == null) Price = "high";
    if (DayOfWeek == null) DayOfWeek = 5;
    if (Length == null) Length = 9;

    var Plot1 = null;
    var Plot2 = null;
    var nBar = (getBarState() == BARSTATE_NEWBAR);


    if ( bInit == false ) { 
        xMyPrice = eval(Price)();
        bInit = true; 
    } 


    if (DOWA == null)
    {
        DOWA = new Array(Length);
        for (i = 0; i < Length; i++)
        {
            DOWA[i] = 0;
        }
    }


    var WeekAvg = 0;
    var Date = getValue("Time", 0);
    if ((Date.getDay() == DayOfWeek) && (nBar))    {
        for (i = Length - 1; i > 0; i--)   {
            DOWA[i] = DOWA[i - 1];
        }
        DOWA[0] = xMyPrice.getValue(0);
    }


    if ((DOWA[Length - 1] != 0) && (nBar))    {
        for (i = 0; i < Length; i++)   {
            WeekAvg += DOWA[i];
        }
        DayOWkAvg = WeekAvg / Length;
    }

    if (DayOWkAvg != 0)        {
        Plot1 = DayOWkAvg;
        if (Date.getDay() == DayOfWeek) Plot2 = DayOWkAvg;
    }


    return new Array(Plot1, Plot2);
}