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Re: rebinning histogram [message #46128]

Mon, 31 October 2005 10:34

James Kuyper
Messages: 425
Registered: March 2000

Senior Member

James Kuyper wrote:
> Is there some way within IDL to do the following while avoiding the
> inefficiency of using IDL loops?
>
> rows = 135
> cols = 203
> ratio = 10
> values = 8
>
> summary = DBLARR(values, cols, rows)
> data = DBLARR(cols*ratio, rows*ratio)
>
> FOR row=0,rows-1 DO BEGIN
> FOR col=0, cols-1 DO BEGIN
> summary[col,row,*] = HISTOGRAM(data[ratio*col:(ratio*col+1), $

correction:

summary[*,col,row] = ...

> ratio*row:(ratio*row+10), MIN=1, MAX=VALUES)
> ENDFOR
> ENDFOR

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