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Re: array [message #90544 is a reply to message #90543]

Mon, 09 March 2015 02:50

Helder Marchetto
Messages: 520
Registered: November 2011

Senior Member

On Monday, March 9, 2015 at 10:27:39 AM UTC+1, 8sushil wrote:
> how can i print the location in the matrix knowing the value in that location.

User the where() function as described here:
http://exelisvis.com/docs/WHERE.html

The result is a 1D location. If your matrix/array is 2D and you *need* a 2D result, then you can use array_indices():
http://exelisvis.com/docs/ARRAY_INDICES.html

If the value you're looking for is myValue and the matrix/array is myArray, then you can use this:

position = where(myValue eq myArray, cnt)
print, 'my 1D position is: ', position
print, 'my 2D position is: ', array_indices(myArray, position)

Make sure you check how to use the cnt result (-1 if not found!). This should get you going. If you're looking for floats, it can be a bit more tricky.

Cheers,
Helder

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[Message index]

		array By: 8sushil on Mon, 09 March 2015 02:27
		Re: array By: Helder Marchetto on Mon, 09 March 2015 02:50
		Re: array By: Jeremy Bailin on Mon, 09 March 2015 11:11
		Re: array By: Helder Marchetto on Mon, 09 March 2015 11:53
		Re: array By: Jeremy Bailin on Mon, 09 March 2015 12:47

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