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Re: arrays as subscripts [message #30792 is a reply to message #30780]

Fri, 17 May 2002 07:52

Dick Jackson
Messages: 347
Registered: August 1998

Senior Member

"Marshall Perrin" <mperrin+news@arkham.berkeley.edu> wrote in message
news:ac1vi6$28r8$1@agate.berkeley.edu...
> David Fanning <david@dfanning.com> wrote:
>>
>> I = Where(A GT 0, count)
>> IF count GT 0 THEN BEGIN
>> bindex = b[i]
>> b[i] = c[bindex]
>> ENDIF
>
> He said a new array, though, for the last one, so something like
>
> newarr = fltarr(n_elements(B)) ; or whatever type of arr it is

A favorite trick of mine for making a cleared-out copy of an array (with the
same type) is:

newarr = Make_Array(Size=Size(B)) ; *whatever* type of arr it is!

Cheers,
--
-Dick

Dick Jackson / dick@d-jackson.com
D-Jackson Software Consulting / http://www.d-jackson.com
Calgary, Alberta, Canada / +1-403-242-7398 / Fax: 241-7392

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[Message index]

		Re: arrays as subscripts By: lyubo on Fri, 17 May 2002 13:38
		Re: arrays as subscripts By: Dick Jackson on Fri, 17 May 2002 07:52
		Re: arrays as subscripts By: David Fanning on Fri, 17 May 2002 00:54
		Re: arrays as subscripts By: mperrin+news on Thu, 16 May 2002 21:05
		Re: arrays as subscripts By: David Fanning on Thu, 16 May 2002 20:39

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