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Re: A[X,Y,Z] -> A[Z,X,Y] [message #21079]

Wed, 09 August 2000 00:00

Liam E. Gumley
Messages: 378
Registered: January 2000

Senior Member

Dave Greenwood wrote:
>
> I'm trying to analyze data from a new experiment using an IDL code from
> a different experiment. The new experiment has data stored in an array
> of the form [X,Y,Z] while the code expects [Z,Y,X]. I can do something
> like (untested):
>
> FOR i = 0, z-1 DO BEGIN
> FOR j = 0, y-1 DO BEGIN
> newarray[i, y, *] = oldarray[*, y, i]
> ENDFOR
> ENDFOR
>
> But I thought perhaps someone (probably several people) here could
> suggest a better (faster, more elegant, etc.) way?
>
> Fyi, to give some size to the problem, X=1024, Y=39 and Z=3.

a = findgen(1024, 39, 3)
b = transpose(a, [2, 0, 1])
help, b
B FLOAT = Array[3, 1024, 39]

Cheers,
Liam.
http://cimss.ssec.wisc.edu/~gumley

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