Ichimoku.efs

[eSignal_JasonK]

File Name: Ichimoku.efs

Description:
The Ichimoku study developed by Goichi Hosoda from Japan.

Formula Parameters:
Turning Line Periods: 9
Standard Line Periods: 26
Leading Span 2 Periods: 52
Displacement: 26
Ichimoku Cloud Style: Striped - [Stiped, Solid]
Ichimoku Could Colo: grey
Line Color: Turning Line: red
Line Color: Standard Line: blue
Line Color: Delayed Line: magenta
Line Color: Leading Span 1 Line: lightgrey
Line Color: Leading Span 2 Line: purple
Line Thickness: Turning Line: 1
Line Thickness: Standard Line: 1
Line Thickness: Delayed Line: 1
Line Thickness: Leading Span 1 Line: 1
Line Thickness: Leading Span 2 Line: 1

Notes:
Bullish signals occur when the Turning Line crosses above the Standard Line, and bearish when crossing below. The shaded area between Leading Span 1 and 2, called the cloud, represents support and resistance. The Delayed Line is simply the close offset by 26 periods to give a quick comparison of today's price to that of 26 periods ago.

8/7/2007
* Study has been updated to utilize EFS2 functionality
* Additional formula parameters added to match built-in study parameters found in FutureSource Workstation Ichimoku study.

Download File:
Ichimoku.efs



EFS Code:

/*********************************
Provided By:  
    eSignal (Copyright © eSignal), a division of Interactive Data 
    Corporation. 2007. 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.
    
Version: 2.0  (8/7/2007)

Notes:
    8/7/2007
    * Study has been updated to utilize EFS2 functionality
    * Additional formula parameters added to match built-in
        study parameters found in FutureSource Workstation 
        Ichimoku study.
**********************************/


// Global Variables
var xTurn  = null;
var xStd   = null;
var xLS1   = null;
var xLS2   = null;

var bInit = false;  // Initialization flag
var vCntr = 0;      // bar counter
var vICntr = 0;     // line counter for drawn lines

function preMain() {
    setPriceStudy(true);
    setStudyTitle("Ichimoku");
    setCursorLabelName("Turning Line", 0);
    setCursorLabelName("Standard Line", 1);
    setCursorLabelName("Delayed Line", 2);
    setCursorLabelName("Leading Span 1", 3);
    setCursorLabelName("Leading Span 2", 4);
    setDefaultBarFgColor(Color.red, 0);
    setDefaultBarFgColor(Color.blue, 1);
    setDefaultBarFgColor(Color.magenta, 2);
    setDefaultBarFgColor(Color.lightgrey, 3);
    setDefaultBarFgColor(Color.purple, 4);
    setShowTitleParameters(false);
    
    var fp1 = new FunctionParameter("nTrnPeriod", FunctionParameter.NUMBER);
        fp1.setName("Turning Line Periods");
        fp1.setLowerLimit(1);
        fp1.setDefault(9);
    
    var fp2 = new FunctionParameter("nStdPeriod", FunctionParameter.NUMBER);
        fp2.setName("Standard Line Periods");
        fp2.setLowerLimit(1);
        fp2.setDefault(26);

    var fp3 = new FunctionParameter("nLS2Period", FunctionParameter.NUMBER);
        fp3.setName("Leading Span 2 Periods");
        fp3.setLowerLimit(1);
        fp3.setDefault(52);

    var fp4 = new FunctionParameter("nOffset", FunctionParameter.NUMBER);
        fp4.setName("Displacement");
        fp4.setLowerLimit(0);
        fp4.setDefault(26);

    var fp5 = new FunctionParameter("sCloud", FunctionParameter.STRING);
        fp5.setName("Ichimoku Cloud Style");
        fp5.addOption("Striped"); 
        fp5.addOption("Solid");
        fp5.setDefault("Striped");

    var fp6 = new FunctionParameter("cCloud", FunctionParameter.COLOR);
        fp6.setName("Ichimoku Cloud Color");
        fp6.setDefault(Color.grey);

    var fp11 = new FunctionParameter("nColorTrn", FunctionParameter.COLOR);
        fp11.setName("Line Color: Turning Line");
        fp11.setDefault(Color.red);
        
    var fp12 = new FunctionParameter("nColorStd", FunctionParameter.COLOR);
        fp12.setName("Line Color: Standard Line");
        fp12.setDefault(Color.blue);
        
    var fp13 = new FunctionParameter("nColorDelay", FunctionParameter.COLOR);
        fp13.setName("Line Color: Delayed Line");
        fp13.setDefault(Color.magenta);
        
    var fp14 = new FunctionParameter("nColorLS1", FunctionParameter.COLOR);
        fp14.setName("Line Color: Leading Span 1 Line");
        fp14.setDefault(Color.lightgrey);
        
    var fp15 = new FunctionParameter("nColorLS2", FunctionParameter.COLOR);
        fp15.setName("Line Color: Leading Span 2 Line");
        fp15.setDefault(Color.purple);

    var fp21 = new FunctionParameter("nThickTrn", FunctionParameter.NUMBER);
        fp21.setName("Line Thickness: Turning Line");
        fp21.setLowerLimit(1);
        fp21.setDefault(1);
        
    var fp22 = new FunctionParameter("nThickStd", FunctionParameter.NUMBER);
        fp22.setName("Line Thickness: Standard Line");
        fp22.setLowerLimit(1);
        fp22.setDefault(1);
        
    var fp23 = new FunctionParameter("nThickDelay", FunctionParameter.NUMBER);
        fp23.setName("Line Thickness: Delayed Line");
        fp23.setLowerLimit(1);
        fp23.setDefault(1);
        
    var fp24 = new FunctionParameter("nThickLS1", FunctionParameter.NUMBER);
        fp24.setName("Line Thickness: Leading Span 1 Line");
        fp24.setLowerLimit(1);
        fp24.setDefault(1);
        
    var fp25 = new FunctionParameter("nThickLS2", FunctionParameter.NUMBER);
        fp25.setName("Line Thickness: Leading Span 2 Line");
        fp25.setLowerLimit(1);
        fp25.setDefault(1);
}

function main(nTrnPeriod, nStdPeriod, nLS2Period, nOffset, sCloud, cCloud,
                nColorTrn, nColorStd, nColorDelay, nColorLS1, nColorLS2,
                nThickTrn, nThickStd, nThickDelay, nThickLS1, nThickLS2) {

    if (bInit == false) {
        setDefaultBarFgColor(nColorTrn, 0);
        setDefaultBarFgColor(nColorStd, 1);
        setDefaultBarFgColor(nColorDelay, 2);
        setDefaultBarFgColor(nColorLS1, 3);
        setDefaultBarFgColor(nColorLS2, 4);
        setDefaultBarThickness(nThickTrn, 0);
        setDefaultBarThickness(nThickStd, 1);
        setDefaultBarThickness(nThickDelay, 2);
        setDefaultBarThickness(nThickLS1, 3);
        setDefaultBarThickness(nThickLS2, 4);
        xTurn = middleDonchian(nTrnPeriod);    
        xStd  = middleDonchian(nStdPeriod);    
        xLS1  = offsetSeries(efsInternal("calcLS1", xStd, xTurn), nOffset);
        xLS2  = offsetSeries(middleDonchian(nLS2Period), nOffset);
        bInit = true;
    }
    
    
    if(getBarState() == BARSTATE_NEWBAR){
        vCntr++;
        vICntr++;
        if (vICntr > 350) vICntr = 0;
    }
    
    var nTurningLine = xTurn.getValue(0);
    var nStandardLine = xStd.getValue(0);
    var nLeadingSpan1 = xLS1.getValue(0);
    var nLeadingSpan2 = xLS2.getValue(0);
    if (nTurningLine == null || nStandardLine == null ||
        nLeadingSpan1 == null || nLeadingSpan2 == null) return;

    
    if (sCloud == "Striped") {
        drawLineRelative(0, nLeadingSpan1, 0, nLeadingSpan2, PS_SOLID, 1, cCloud, "Cloud"+vICntr);
    } else {
        if(nLeadingSpan1>nLeadingSpan2)
            setBarBgColor(cCloud, 0, nLeadingSpan2, nLeadingSpan1);
        if(nLeadingSpan1<nLeadingSpan2)
            setBarBgColor(cCloud, 0, nLeadingSpan1, nLeadingSpan2);
    }

    if (nOffset > 0) {
        if(getBarState() == BARSTATE_NEWBAR){
            var nNum = 1;
        }else{
            var nNum = 0;
        }
    
        if(getBuildNumber()>636){
            setBar(Bar.Value,-nOffset,2,close(0));
        }else{
            setBar(Bar.Value,-nOffset+nNum,new Array(null,null,close(0),null,null));
        }
    
        return new Array(nTurningLine, nStandardLine, null, nLeadingSpan1, nLeadingSpan2);
    } else {
        return new Array(nTurningLine, nStandardLine, close(0), nLeadingSpan1, nLeadingSpan2);
    }
}


function calcLS1( xSTD, xTRN ) {
    return (xSTD.getValue(0) + xTRN.getValue(0)) / 2;
}