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Re: How to extract a scalar from a vector? [message #74162 is a reply to message #74161]

Tue, 04 January 2011 15:37

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Balt writes:

> See this:
> IDL> help,cal_data[sel_cal_data,3]
> <Expression> DOUBLE = Array[1]
>
> How on earth can I make cal_data[sel_cal_data,3] into
> a scalar?

IDL> Help, (cat_data[sel_cal_data,3])[0]

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.")

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[Message index]

		Re: How to extract a scalar from a vector? By: Balt on Tue, 04 January 2011 16:03
		Re: How to extract a scalar from a vector? By: penteado on Tue, 04 January 2011 15:43
		Re: How to extract a scalar from a vector? By: David Fanning on Tue, 04 January 2011 15:37
		Re: How to extract a scalar from a vector? By: R.Bauer on Tue, 18 January 2011 23:07
		Re: How to extract a scalar from a vector? By: chrisbuc on Wed, 11 October 2017 03:10
		Re: How to extract a scalar from a vector? By: David Fanning on Tue, 04 January 2011 16:08

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