Candlestick: Dark Cloud

[eSignal]

File Name: DarkCloud.efs

Description:
Dark Cloud

Formula Parameters:
Font Arial Narrow
Font Size 11
Font and Shape Color Green
Font BgColor White


Notes:
This is a bearish reversal pattern formed by two candlesticks within a uptrend.
Consists of an up candlestick followed by a down candlestick which opens lower
than the prior candlestick and closes below the midrange of the prior candlestick.
It is the reverse of the Piercing Line.


Download File:
DarkCloud.efs



EFS Code:

/*********************************
Provided By:  
    eSignal (Copyright c eSignal), a division of Interactive Data 
    Corporation. 2009. 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:        
    Dark Cloud

Version:            1.0  12/24/2009

Formula Parameters:                     Default:
    Font                                Arial Narrow
    Font Size                           11
    Font and Shape Color                Green
    Font BgColor                        White
    
Notes:
    This is a bearish reversal pattern formed by two candlesticks  within a uptrend. 
    Consists of an up candlestick followed by a down candlestick which opens lower 
    than the prior candlestick and closes below the midrange of the prior candlestick. 
    It is the reverse of the Piercing Line.
**********************************/

var fpArray = new Array();

function preMain() {
    setPriceStudy(true);
    setStudyTitle("Dark Cloud");
    setShowCursorLabel(false);
    setShowTitleParameters(false);
    var x=0;
    fpArray[x] = new FunctionParameter("nFontSize", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setName("Font Size")
        setLowerLimit(6);        
        setDefault(11);
    }
    fpArray[x] = new FunctionParameter("cFontColor", FunctionParameter.COLOR);
    with(fpArray[x++]){
        setName("Font and Shape Color");
        setDefault(Color.green);
    }    
    fpArray[x] = new FunctionParameter("cFontBgColor", FunctionParameter.COLOR);
    with(fpArray[x++]){
        setName("Font BgColor");
        setDefault(Color.white);
    }    
    fpArray[x] = new FunctionParameter("sFont", FunctionParameter.STRING);
    with(fpArray[x++]){
        setName("Font");
        setDefault("Arial Narrow");
    }    
}

function main(sFont, nFontSize, cFontColor, cFontBgColor) {
    Find_DarkCloud(sFont, nFontSize, cFontColor, cFontBgColor);
    return;
}

function Find_DarkCloud(sFont, nFontSize, cFontColor, cFontBgColor) {
var nState = getBarState();
var Open = open(0);
var Close = close(0);
var Open1 = open(-1);
var Close1 = close(-1);
var High1 = high(-1);
var nID = getCurrentBarCount();
    if (nState == BARSTATE_ALLBARS) {
        if (sFont == null) sFont = "Arial Narrow";
        if (nFontSize == null) nFontSize = 11;
        if (cFontColor == null) cFontColor = Color.green;
        if (cFontBgColor == null) cFontBgColor = Color.white;
    }
    if (Close1 > Open1 && 
        Open > High1 &&
        Close < Close1 - ((Close1 - Open1) / 2) &&
        Close > Open1) {
        drawTextRelative(0, AboveBar2, "DC", cFontColor, cFontBgColor, Text.PRESET | Text.CENTER, sFont, nFontSize, "T"+nID); 
        drawShapeRelative(0, AboveBar1, Shape.DOWNARROW, null, cFontColor, Shape.PRESET, "S"+nID);         
    } else {
        removeText("T"+nID);
        removeShape("S"+nID);
    }
    return;
}