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how to extend a vector from size A to size B, (A<B) without "damage" the data in A [message #79517]

Wed, 07 March 2012 13:51

Tito
Messages: 16
Registered: March 2012

Junior Member

Hi all!

I have the fowling problem:
I have a array vector A with size [970] elements lets say, and another that is 'B' with [1024] elements. now... both contain spectra and I want to do cross-correlation between the two vectors. This will be possible if A is 1024 element vector.

I am new in IDL and shoot and try several thing here like:
A = interpol(A,1024)
and I saw also someone suggested:
A = [A, intarr(n_elements(B)-n_elements(A))] , but doesn't give me what I want.

A is synthetic spectra (mask) and I just want to increase the resolution without losing the quality of the data(the relative distances between the lines)

A = interpol(A,1024), actually works, but I see very obvious differences in the 970 and the result spectra.

Anybody know how to do it?

All the best,
Tito

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[Message index]

		how to extend a vector from size A to size B, (A<B) without "damage" the data in A By: Tito on Wed, 07 March 2012 13:51
		Re: how to extend a vector from size A to size B, (A<B) without "damage" the data in A By: santorofer on Fri, 16 March 2012 14:58

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