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envi/idl question from a newbie [message #16171]

Thu, 01 July 1999 00:00

Mark Amend
Messages: 2
Registered: July 1999

Junior Member

Dear IDL group-

I'm using ENVI 3.1/IDL 5.1 and would like to set pixel values of 0.0 to NaN
in order to carry out some analyses without including 0.0 values. Is there
an easy way to do this with the Band Math function of ENVI, or is there a
quick and dirty IDL solution?

Thanks for any help

Sincerely,

Mark Amend

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Re: envi/idl question from a newbie [message #94308 is a reply to message #16171]

Wed, 05 April 2017 02:35

milner.jrd
Messages: 1
Registered: April 2017

Junior Member

On Thursday, July 1, 1999 at 5:00:00 PM UTC+10, Mark Amend wrote:
> Dear IDL group-
>
> I'm using ENVI 3.1/IDL 5.1 and would like to set pixel values of 0.0 to NaN
> in order to carry out some analyses without including 0.0 values. Is there
> an easy way to do this with the Band Math function of ENVI, or is there a
> quick and dirty IDL solution?
>
> Thanks for any help
>
> Sincerely,
>
> Mark Amend

Is there a way to do this without band math? I just need to assign null value pixels (-999) to NaN and want to do it using the GUI.... would really appreciate any help!

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