getWeeklyOHLC.efs

[eSignal_JasonK]

File Name: getWeeklyOHLC.efs

Description:
Returns the Weekly OHLC data with the use of callFunction() and may be used with any interval less than weekly.

Formula Parameters:
sPriceSource: No Default value. Pass “Open” /”High”/”Low”/”Close” to callFunction()

Notes:
Save this formula to /eSignal/Formulas/OHLC/ and use this formula through the callFunction() function from your custom formulas to get the current week’s OHLC prices.

Code Example:

function main() {
    var vData = callFunction("/OHLC/getWeeklyOHLC.efs", "main", "High");    
    if (vData == null) return;
    return vData;
} 

Download File:
getWeeklyOHLC.efs




EFS Code:

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

function preMain() {
}

/**
  sPriceSource will be "Open", "High", "Close", or "Low"
 
  This formula is for callFunction() calls from an 
    external formula.
    
    example:

    var vData = callFunction("/OHLC/getWeeklyOHLC.efs", "main", "High");    
    if (vData == null) return;
    return vData;

**/


var vSymbol;
var vInterval;
var msPerDay = 24*60*60*1000;

function main(sPriceSource) {
    if(sPriceSource == null) return;

      var vBar;
    var vBarTime;
    var vAbsTime;
    var vIndex;

    var nState = getBarState();
    if(nState == BARSTATE_ALLBARS) {
        vSymbol = getSymbol();
        vInterval = getInterval();
        vSymbol += ",W";
    }

    if(vInterval == null) return;

    if(vInterval == "W" || vInterval == "M") return;
    
    vBarTime = getValue("time");
    if(vBarTime != null) {
        var vTime = new Date();
        vIndex = (Math.round(Math.round((vTime.getTime() - vBarTime.getTime()) / msPerDay) / 7) * -1);
        if(vIndex != null) {
            vBar = getValueAbsolute(sPriceSource, vIndex, vSymbol);
            return vBar;
        }
    }
    
    return;
}