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Re: HELP adding arrays [message #91537 is a reply to message #91536]

Sun, 26 July 2015 10:41

dg86
Messages: 118
Registered: September 2012

Senior Member

On Sunday, July 26, 2015 at 11:30:16 AM UTC-4, Dete van Eeden wrote:
> Hallo
>
> I have posted before but I still cant add arrays together!
>
> I have tried the total command:
>
> finaal=fltarr(1508)
> values=fltarr(1508,6)
>
> finaal=total(values,2)
>
> finaal is equal to the last array...
>
> I have also tried
>
> finaal=fltarr(1508)
> values=fltarr(1508,6)
>
> finaal=temporary(finaal) + values[*,j]
>
> finaal is Still equal to the last array
>
> What the hell?!
>
> It cant be that difficult......

Your "values" all have the value zero. The sum is working, but you're
only adding up the value zero. Try this ...

IDL> values = findgen(5, 6) ; create a small index array for demo
IDL> finaal = total(values, 2) ; sum over the second dimension
IDL> print, finaal
75.000000 81.000000 87.000000 93.000000 99.000000

It works!

All the best,

David

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[Message index]

		HELP adding arrays By: Dete van Eeden on Sun, 26 July 2015 08:30
		Re: HELP adding arrays By: dg86 on Sun, 26 July 2015 10:41
		Re: HELP adding arrays By: Dete van Eeden on Sun, 26 July 2015 10:46
		Re: HELP adding arrays By: Dete van Eeden on Sun, 26 July 2015 10:49
		Re: HELP adding arrays By: Dete van Eeden on Sun, 26 July 2015 10:51
		Re: HELP adding arrays By: David Fanning on Sun, 26 July 2015 12:41

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