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Re: Simple question in IDL, looking for solution, thank you [message #81766 is a reply to message #81762]

Mon, 22 October 2012 04:55

Heinz Stege
Messages: 189
Registered: January 2003

Senior Member

Hi Danxia,

you didn't ask for a solution without a loop. So here is my simple
answer:

arr=[5,2,3,1,8,3,1,2,3]
bcg=[1,2,3,2,1,4,2,3,5]
sum=intarr(max(arr)+1)
for i=0,n_elements(bcg)-1 do sum[arr[i]]+=bcg[i]
print,sum[1:*]

Cheers, Heinz

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[Message index]

		Re: Simple question in IDL, looking for solution, thank you By: Danxia on Mon, 22 October 2012 14:37
		Re: Simple question in IDL, looking for solution, thank you By: Danxia on Mon, 22 October 2012 14:36
		Re: Simple question in IDL, looking for solution, thank you By: Jeremy Bailin on Mon, 22 October 2012 11:10
		Re: Simple question in IDL, looking for solution, thank you By: Heinz Stege on Mon, 22 October 2012 04:55
		Re: Simple question in IDL, looking for solution, thank you By: Heinz Stege on Tue, 23 October 2012 11:07

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