Using LINQ to Obtain Max of Columns for Two Dimensional Arrays

Posted by Ngu Soon Hui on Stack Overflow See other posts from Stack Overflow or by Ngu Soon Hui
Published on 2010-04-06T04:24:54Z Indexed on 2010/04/06 4:33 UTC
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Is there anyway to use LINQ to obtain the maximum of each columns for two dimensional arrays?

Assume that I have the following:

var arrays = new double[5,100]();

I want to get the maximum of arrays[0,:], arrays[1,:] .... arrays[4,:]. How to use LINQ to do it?

I could have use such method

public double GetMax(double[,] arr, int rowIndex)
{
   var colCount = arr.GetLength(1);
   double max = 0.0;
   for(int i=0; i<colCount; i++)
   {
      max=Math.Max(Math.Abs(arr[rowIndex, i]), max);
   }
   return max;
}

But I would prefer a more succinct ways of doing things.

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