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Re: where and NAN numbers [message #42159 is a reply to message #42158]

Wed, 12 January 2005 04:08

maarten
Messages: 30
Registered: April 2002

Member

What version are you using, because in 6.1.1. the results are:
IDL> u = [!values.f_nan, 1, 2, 3]
IDL> print, where(u eq 3)
3
IDL> print, where(u ge 3)
3

euskalmet07@ej-gv.es wrote:
> Hi dear IDL user,
>
> Maybe my question is too obvious, but I canï¿½t guess the response.
>
> Having the vector:
>
> IDL> u = [!values.f_nan, 1, 2, 3]
>
> why is different the resulting vector in these following two WHERE functions?
>
> IDL> print, where(u eq 3)
> 0 3
> % Program caused arithmetic error: Floating illegal operand
>
> IDL> print, where(u ge 3)
> 3
> % Program caused arithmetic error: Floating illegal operand
>
>
> Any response would be appreciated.

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[Message index]

		Re: where and NAN numbers By: Mark Hadfield on Wed, 12 January 2005 15:16
		Re: where and NAN numbers By: Haje Korth on Wed, 12 January 2005 06:24
		Re: where and NAN numbers By: maarten on Wed, 12 January 2005 04:08

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