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Re: A strange error with WHERE [message #67474]

Thu, 30 July 2009 21:24

Lindzen
Messages: 4
Registered: July 2009

Junior Member

On 7月31日, 下午12时11分, David Fanning <n...@dfanning.com> wrote:
> Lindzen writes:
>> It's not that problem. Please see below:
>
>> PRINT, WHERE(lon_aoc ge 117.25)
>> 1708 1799 .....
>> PRINT, WHERE(lon_aoc ge lon_left)
>> -1
>> PRINT, lon_left
>> 117.25
>
>> Well. Maybe I need to check whether there exist strange characters in
>> the code, although it is almost impossible.
>
> OK, here is what I think is wrong, then.
> I think lon_left is not a scalar. I think
> it is a one-element array. It needs to be
> a scalar. This will probably work:
>
> PRINT, WHERE(lon_aoc ge lon_left[0])
>
> Cheers,
>
> David
>
> P.S. This is known as the Gotcha That Gets You Every Time. :-)
>
> --
> 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.")

Hi David,
Thank you very much. It is the problem!

Lin

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[Message index]

		Re: A strange error with WHERE By: Lindzen on Thu, 30 July 2009 21:24
		Re: A strange error with WHERE By: David Fanning on Thu, 30 July 2009 21:11
		Re: A strange error with WHERE By: Lindzen on Thu, 30 July 2009 20:50
		Re: A strange error with WHERE By: David Fanning on Thu, 30 July 2009 20:44
		Re: A strange error with WHERE By: Lindzen on Thu, 30 July 2009 20:33
		Re: A strange error with WHERE By: David Fanning on Thu, 30 July 2009 20:22
		Re: A strange error with WHERE By: Paul Van Delst[1] on Fri, 31 July 2009 12:46

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