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Question about the TOTAL function. [message #43543]

Fri, 15 April 2005 08:53

Nuno Oliveira
Messages: 75
Registered: October 2003

Member

I have a question that somebody that works with IDL many had faced before.
Imagine I have a matrix(X,Y), no matter the type of variable, and if want na
array with the projection along de x axis, something like

for i = 0, n-1 do $

SUMX = TOTAL(i, *)

How can I do it without the FOR cicle.

If I try

SUMX[ 0:N-1 ] = TOTAL( 0:N-1, * )

The function returns the total of the matrix for the every position of SUMX.
Is there a way that I can do it quicker?

Thanks in advance,

Greeting,

Nuno.

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