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Re: subset a 2d array [message #61932 is a reply to message #61931]

Thu, 14 August 2008 07:54

xiao zhang
Messages: 81
Registered: June 2008

Member

On Aug 13, 10:53 pm, David Fanning <n...@dfanning.com> wrote:
> xiao writes:
>> hmmm... The problem is I have a array like 240*500. And all the
>> values are different. And I do not know the row and column. I only
>> know the center value should be 2.5 . Then ,how can I do that? :)
>
> index = Where(array EQ 2.5, count)
> xy = array_indices(array, index[0])
> subarray = array[xy[0]-1:xy[0]+1, xy[1]-1:xy[1]+1]
>
> Cheers,
>
> David
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")

hoho, Thank you very much~ David~

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[Message index]

		Re: subset a 2d array By: xiao zhang on Thu, 14 August 2008 09:46
		Re: subset a 2d array By: David Fanning on Thu, 14 August 2008 09:34
		Re: subset a 2d array By: xiao zhang on Thu, 14 August 2008 09:24
		Re: subset a 2d array By: xiao zhang on Thu, 14 August 2008 07:54
		Re: subset a 2d array By: David Fanning on Wed, 13 August 2008 20:53
		Re: subset a 2d array By: xiao zhang on Wed, 13 August 2008 20:22

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