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Re: How to extract a scalar from a vector? [message #94779 is a reply to message #74162]

Wed, 11 October 2017 03:10

chrisbuc
Messages: 1
Registered: October 2017

Junior Member

On Tuesday, 4 January 2011 23:37:35 UTC, David Fanning wrote:
> 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.")

Thanks Dave,
I would never have thought of (arr[0])[0] to get a scaler from a 1 element array. Cheers :-)
Chris Buckley

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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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