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Re: Question [message #76395 is a reply to message #17044]

Tue, 31 May 2011 02:10

Fabzou
Messages: 76
Registered: November 2010

Member

On 05/31/2011 10:02 AM, Konstantinos wrote:
> Dear ALL
>
> Supose that we have an matrix, lets say a[200,200]
> most of the elements are 0
> I want to find the coordinates and the values of the elements that are
> not zero within the matrix
> (eg valye 5, col 12, row 17)
>
> if i give the commanf
>
> index=WHERE(a gt 0)
> then the result is a long aray of dimesion 1.

the size of the array depends on how many elements were found.

To get the coordinates into the matrix, you might want to use
ARRAY_INDICES.

>
> any suggestions?
>
> Thank You in advance
>
> Kostas

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		question By: Ophir Maor on Thu, 09 September 1999 00:00
		Re: Question By: Konstantinos on Tue, 31 May 2011 13:07
		Re: Question By: Fabzou on Tue, 31 May 2011 02:10

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