BOP – EFS

BOP.efs
EFSLibrary - Discussion Board
File Name: BOP.efs
Description:
BOP
Formula Parameters:
Length: 14
Line Color: Green
Line Thickness: 2
Display Cursor Labels: True
Notes:
Download File:
BOP.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:        
    BOP

Version:            1.0  10/31/2008

Notes:

Formula Parameters:                     Default:
    Length                              14
    Line Color                          Green
    Line Thickness                      2
    Display Cursor Labels               True
**********************************/


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

function preMain() {

    setPriceStudy(false);
    setShowCursorLabel(false);
    setShowTitleParameters( false );
    
    setStudyTitle("BOP");
    setCursorLabelName("BOP", 0);

    setDefaultBarFgColor(Color.red, 0);
    setPlotType(PLOTTYPE_LINE, 0); 
    setDefaultBarThickness(2, 0);

   
    askForInput();
    var x=0;
    fpArray[x] = new FunctionParameter("LineColor", FunctionParameter.COLOR);
    with(fpArray[x++]){
        setName("Line Color");
        setDefault(Color.green);
    }    

    fpArray[x] = new FunctionParameter("ViewValue", FunctionParameter.BOOLEAN);
    with(fpArray[x++]){
        setName("Display Cursor Labels");
        setDefault(true);
    }    
    
    fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);
	with(fpArray[x++]){
        setLowerLimit(1);		
        setDefault(14);
    }

    fpArray[x] = new FunctionParameter("Thickness", FunctionParameter.NUMBER);
	with(fpArray[x++]){
        setName("Line Thickness");
        setLowerLimit(1);		
        setDefault(2);
    }
}

var xBOP = null;
var xAvgBOP = null;

function main(Length, Thickness, LineColor, ViewValue) {
    if ( bInit == false ) { 
        setDefaultBarFgColor(LineColor, 0);
        setDefaultBarThickness(Thickness, 0);
        setShowCursorLabel(ViewValue);        
        xBOP = efsInternal("CalcBOP");
        xAvgBOP = sma(Length, xBOP);
        bInit = true; 
    } 

    if (getCurrentBarCount() < Length) return;

    return xAvgBOP.getValue(0); 
}

function CalcBOP() {
var nRes = 0;
    if (high() - low(0) != 0) {
        nRes = (close(0) - open(0)) / (high(0) - low(0));
    }  
    if (nRes == null) nRes = 1;
    return nRes;
}