Saturday, September 04, 2010

Bearish Deliberation [DDE]

Descripton
Rules:
1. The first candlestick is a long green candlestick.
2. The second candlestick is a long green candlestick which opens above the open of the first candlestick and closes above the close of the first candlestick.
3. The third candlestick is a short green candlestick which opens above the close of the second candlestick.

Pattern Type:
Bearish Reversal.


Variables
TypeIdentifierDescription
Integer_symbolIndexUse for the underlying symbol index on which to calculate the Bearish Deliberation .
Number_minCandleSizeUse for the minimum percentage change (open to close) that a candlestick must change in order to be considered a long candlestick.

OnInitialize
Function Parameters
TypeIdentifierDescription
SymbolsymbolIndexUse for the underlying symbol index on which to calculate the Bearish Deliberation .
NumberminCandleSizeUse for the minimum percentage change (open to close) that a candlestick must change in order to be considered a long candlestick. [Default 0.5]
Implementation
	 ' Assign the parameters to script variables.
	_symbolIndex = symbolIndex
	_minCandleSize = minCandleSize

OnPattern
Function Parameters
TypeIdentifierDescription
IntegerbarIndex
Implementation
	 ' Get the opening prices of the symbol, indexed by bar index. 
	Define open() As Number = BarOpen(_symbolIndex, barIndex, 3)
	 ' Get the closing prices of the symbol, indexed by bar index. 
	Define close() As Number = BarClose(_symbolIndex, barIndex, 3)
	 ' Check whether the first candlestick matches.
	If (open(2) < close(2) And _
	    100 * (close(2) - open(2)) / open(2) >  _minCandleSize) Then
		 ' Check whether the second candlestick matches.
		If (open(1) < close(1) And _
			open(2) < open(1) And _
			close(2) < close(1) And _
			100 * (close(1) - open(1)) / open(1) >  _minCandleSize) Then
			 ' Check whether the third candlestick matches.
			If (open(0) < close(0) And _
				close(1) <= open(0) And _
				100 * (close(0) - open(0)) / open(0) <  _minCandleSize) Then
				Return 3
			End If
		End If
	End If
	Return 0

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