[Quantproject-developers] QuantProject/b1_ADT/Histories History.cs,1.6,1.7

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

Update of /cvsroot/quantproject/QuantProject/b1_ADT/Histories
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv4478/b1_ADT/Histories

Modified Files:
	History.cs 
Log Message:
The method MultiplyBy has been added

Index: History.cs
===================================================================
RCS file: /cvsroot/quantproject/QuantProject/b1_ADT/Histories/History.cs,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -d -r1.6 -r1.7
*** History.cs	11 Jan 2004 19:09:11 -0000	1.6
--- History.cs	20 Jan 2005 01:22:31 -0000	1.7
***************
*** 82,85 ****
--- 82,122 ----
      }
  
+ 		
+ 		#region MultiplyBy
+ 		private double multiplyBy_getCurrentValue( DateTime key )
+ 		{
+ 			double returnValue;
+ 			try
+ 			{
+ 				returnValue = Convert.ToDouble( this[ key ] );
+ 			}
+ 			catch ( Exception exception )
+ 			{
+ 				string errorMessage = "The current History object contains a value " +
+ 					"that cannot be converted to a double. The wrong value is at the date " +
+ 					key.ToString() + ".\nOriginal error message: " + exception.Message;
+ 				throw new Exception( errorMessage );
+ 			}
+ 			return returnValue;
+ 		}
+ 		/// <summary>
+ 		/// Returns an history where each value is multiplied by the given factor.
+ 		/// The History instance must contain only numeric values
+ 		/// </summary>
+ 		/// <param name="factor"></param>
+ 		/// <returns></returns>
+ 		public History MultiplyBy( double factor )
+ 		{
+ 			if ( factor == 0.0 )
+ 				throw new Exception( "factor can not be equal to zero" );
+ 			History returnValue = new History();
+ 			foreach ( DateTime key in this.Keys )
+ 			{				
+ 				double currentValue = this.multiplyBy_getCurrentValue( key );
+ 				returnValue.Add( key , currentValue * factor );
+ 			}
+ 			return returnValue;
+ 		}
+ 		#endregion
      public DateTime GetNextDay( DateTime dateTime )
      {