[Quantproject-developers] QuantProject/b1_ADT ExtendedDataTable.cs,1.9,1.10

[Marco M. <mi...@us...>]

Update of /cvsroot/quantproject/QuantProject/b1_ADT
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv19468/b1_ADT

Modified Files:
	ExtendedDataTable.cs 
Log Message:
Added GetRatesOfReturnsFromColumns method

Index: ExtendedDataTable.cs
===================================================================
RCS file: /cvsroot/quantproject/QuantProject/b1_ADT/ExtendedDataTable.cs,v
retrieving revision 1.9
retrieving revision 1.10
diff -C2 -d -r1.9 -r1.10
*** ExtendedDataTable.cs	10 Jun 2005 18:52:00 -0000	1.9
--- ExtendedDataTable.cs	25 Jun 2005 10:01:54 -0000	1.10
***************
*** 161,165 ****
        
      }
!     
      /// <summary>
  	  /// It returns a hashtable containing the common values in two
--- 161,191 ----
        
      }
!     /// <summary>
!     /// Get an array of float corresponding to the rates of return
!     ///  of columnA with respect to columnB
!     /// </summary>
!     public static float[] GetRatesOfReturnsFromColumns(DataTable table,
!                                                        string columnAName, string columnBName)
!     {
!       int numRows = table.Rows.Count;
!       float[] arrayOfFloat = new float[numRows];
!       int index = 0;
!       try
!       {
!         for(; index!= numRows; index++)
!         {
!           arrayOfFloat[index] = (float) table.Rows[index][columnAName] / 
!         	                       (float) table.Rows[index][columnBName] - 1;
!         }
! 
!       }
!       catch(Exception ex)
!       {
!         MessageBox.Show(ex.ToString());
!         index = numRows; //for getting out of the for block
!       }
!       return arrayOfFloat;
!       
!     }
      /// <summary>
  	  /// It returns a hashtable containing the common values in two