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Re: array summation [message #93450 is a reply to message #93449]

Tue, 19 July 2016 10:59

wlandsman
Messages: 743
Registered: June 2000

Senior Member

On Tuesday, July 19, 2016 at 1:41:07 PM UTC-4, AGW wrote:
> On Tuesday, July 19, 2016 at 3:45:12 PM UTC+2, AGW wrote:
>> Hi,
>> my IDL program as
>>
>> file='c:\a.sav'
>> restore,file,/st
>>
>> V=[12,55,44,88,99]
>>
>> x=sT[500,1000,15,0] ; it is an image
>>
>> y=sT[500,1000,15,2] ; it is an image
>>
>> I want to make
>>
>> z=SUM(v*[x+y])
>>
>>
>> I want to result of z array as [500,1000,15,1], How can I do it ?
>
> OK, x=sT[0:499,0:999,15,0] & x=sT[0:499,0:999,15,2]

OK so it appears that ST is a 4 dimensional array
and now X and Y are 2d images

Now what exactly do you want to do?

>> I want to make
>>
>> z=SUM(v*[x+y])

So you add X and Y to make another 2d image, and then you want to multiply by the 5 element vector v?

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[Message index]

		array summation By: Ali Gamal on Tue, 19 July 2016 06:45
		Re: array summation By: wlandsman on Tue, 19 July 2016 07:12
		Re: array summation By: Ali Gamal on Tue, 19 July 2016 07:34
		Re: array summation By: wlandsman on Tue, 19 July 2016 07:44
		Re: array summation By: Craig Markwardt on Tue, 19 July 2016 09:46
		Re: array summation By: Ali Gamal on Tue, 19 July 2016 10:41
		Re: array summation By: wlandsman on Tue, 19 July 2016 10:59
		Re: array summation By: Ali Gamal on Tue, 19 July 2016 13:42
		Re: array summation By: Ali Gamal on Tue, 26 July 2016 07:35
		Re: array summation By: wlandsman on Tue, 26 July 2016 11:20
		Re: array summation By: Ali Gamal on Tue, 26 July 2016 12:22

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