How to retrieve a value from CSML matrix?

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i am using CSML for matrix multiplication.
at certain points i have to retrieve a specific indexed value from the matrix but i am unable to retrieve it.

the method i am using is:

public static int matrix2int(Matrix m, int i, int j)
{
return (int)m.Row(i).Values[j-1];//casting Arraylist to int
}

the error being generated is can not cast Arraylist to int.
can the developer of CSML help me out how to do it.

waiting for your answer

Posted 8-Feb-10 2:36am

Innayat Ullah

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kaschimer · Answer 1 · 2010-02-08T03:26:00

Solution 1

try it this way"

return (int)(m.Row(i).Values[j-1]);

Essentailly, cast the value in the ArrayList as an int instead of casting the ArrayList as an int.

Posted 8-Feb-10 3:26am

kaschimer

Updated 8-Feb-10 3:27am

v2

Richard MacCutchan · Answer 2 · 2010-02-08T03:32:00

Solution 2

Innayat Ullah wrote:
can the developer of CSML help me out how to do it.

And you think this person, whoever he is, is going to appear from nowhere and see your message?

Posted 8-Feb-10 3:32am

Richard MacCutchan

kaschimer · Answer 3 · 2010-02-08T05:36:00

Well you may need to do some error handling then...

If the value returned from m.Row(i).Values[j-1] always an int? If not, then the code I gave will error, because we assume that the value is an int when we cast it.

You might want to try Int32.Parse(m.Row(i).Values[j-1]) or Int32.TryParse().

Figure out if there is some exception being thrown, figure out what the value is in the matrix, etc.

Innayat Ullah · Answer 4 · 2010-02-08T03:35:00

Solution 3

Thanks for the answer but it isn't working either

Posted 8-Feb-10 3:35am

Innayat Ullah