[Quantproject-developers] QuantProject/b4_Business/a2_Strategies WeightedPositions.cs, 1.13, 1.14

[Glauco S. <gla...@us...>]

Update of /cvsroot/quantproject/QuantProject/b4_Business/a2_Strategies
In directory sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv14360/a2_Strategies

Modified Files:
	WeightedPositions.cs 
Log Message:
The read only property
public WeightedPositions Opposite
has been added

Index: WeightedPositions.cs
===================================================================
RCS file: /cvsroot/quantproject/QuantProject/b4_Business/a2_Strategies/WeightedPositions.cs,v
retrieving revision 1.13
retrieving revision 1.14
diff -C2 -d -r1.13 -r1.14
*** WeightedPositions.cs	14 Jan 2008 23:27:26 -0000	1.13
--- WeightedPositions.cs	27 Feb 2008 22:17:10 -0000	1.14
***************
*** 118,121 ****
--- 118,144 ----
  			get { return this.ToString(); }
  		}
+ 
+ 		/// <summary>
+ 		/// returns a new WeightedPositions object, obtained by the current instance,
+ 		/// but reversing the sign of each weight for each position:
+ 		/// long positions become then short positions and viceversa
+ 		/// </summary>
+ 		public WeightedPositions Opposite
+ 		{
+ 			get
+ 			{
+ 				double[] oppositeWeights = new Double[ this.Count ];
+ 				string[] tickers = new String[ this.Count ];
+ 				for ( int i = 0 ; i < this.Count ; i++ )
+ 				{
+ 					tickers[ i ] = ((WeightedPosition)(this[ i ])).Ticker;
+ 					oppositeWeights[ i ] = -((WeightedPosition)(this[ i ])).Weight;
+ 				}
+ 				WeightedPositions opposite = new WeightedPositions(
+ 					oppositeWeights , tickers );
+ 				return opposite;
+ 			}
+ 		}
+ 
  		private void weightedPositions_default( double[] normalizedWeightValues ,
  			string[] tickers )