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I would like to average the first n columns based on duplicate values of the n+1th column [message #93699]

Mon, 03 October 2016 14:05

belkaraza
Messages: 6
Registered: June 2016

Junior Member

Hey,
Can Someone help me solve this problem in IDL:
"I have a matrix with duplicate numbers in one of the columns. I would like to average the rows with duplicate numbers. For example, I have duplicate values in a matrix A in column 3:

A =
1 2 1
4 4 2
5 4 2
4 5 2
5 5 3
10 3 3

B =
1 2 1
4.3333 4.3333 2.0000
7.5000 4.0000 3.0000

where each row is the average values of the duplicate rows of column 3.

Can anyone help?"

found here:
http://stackoverflow.com/questions/15270019/i-would-like-to- average-the-first-n-columns-based-on-duplicate-values-of-the -n1

Cheers,
B.R.

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[Message index]

		I would like to average the first n columns based on duplicate values of the n+1th column By: belkaraza on Mon, 03 October 2016 14:05
		Re: I would like to average the first n columns based on duplicate values of the n+1th column By: Markus Schmassmann on Tue, 04 October 2016 03:32
		Re: I would like to average the first n columns based on duplicate values of the n+1th column By: belkaraza on Tue, 04 October 2016 04:17
		Re: I would like to average the first n columns based on duplicate values of the n+1th column By: belkaraza on Tue, 04 October 2016 04:23
		Re: I would like to average the first n columns based on duplicate values of the n+1th column By: belkaraza on Tue, 04 October 2016 04:32
		Re: I would like to average the first n columns based on duplicate values of the n+1th column By: Markus Schmassmann on Tue, 04 October 2016 04:35
		Re: I would like to average the first n columns based on duplicate values of the n+1th column By: Helder Marchetto on Tue, 04 October 2016 05:34

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