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Re: Storing values in array after each iteration in for loop [message #91305 is a reply to message #91266]

Sat, 27 June 2015 09:58

Jeremy Bailin
Messages: 618
Registered: April 2008

Senior Member

On Wednesday, June 24, 2015 at 11:41:50 PM UTC-4, Michael Galloy wrote:
> On 6/24/15 4:44 PM, kcs4315@g.rit.edu wrote:
>> Hi,
>>
>> I'm very new to IDL....
>>
>> Essentially what I want to do is after each iteration of a for loop,
>> store the value it produces in an array. I originally tried making
>> the array in the for loop but it was over written every time it went
>> through an iteration, so only the last value was stored and
>> everything else was 0. Is there an easy way to remedy this?
>
> I imagine it would be something like:
>
> x = fltarr(n)
> for i = 0L, n - 1L do begin
> x[i] = ; whatever processing you want to do here
> endfor
>
> Mike
> --
> Michael Galloy
> www.michaelgalloy.com
> Modern IDL: A Guide to IDL Programming (http://modernidl.idldev.com)

It's also worth noting that, depending on what exactly you're doing inside the for loop, you may be able to operate on full arrays at once instead of using a for loop. :)

-Jeremy.

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[Message index]

		Storing values in array after each iteration in for loop By: kcs4315 on Wed, 24 June 2015 15:44
		Re: Storing values in array after each iteration in for loop By: Michael Galloy on Wed, 24 June 2015 20:41
		Re: Storing values in array after each iteration in for loop By: Jeremy Bailin on Sat, 27 June 2015 09:58

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