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help - speeding up a loop [message #92551]

Mon, 11 January 2016 09:29

natha
Messages: 482
Registered: October 2007

Senior Member

Hi guys,

I am trying to implement a circular smooth on an irregular x, y grid.
The following loop takes too much time. How do you think I could make it faster?

for i=0L, n_rang-1 do for j=0L, n_azim-1 do begin

distkm=sqrt((xx-xx[i,j])^2. + (yy-yy[i,j])^2.)

ww=where(distkm lt 5.,nn_w)
if nn_w gt 0 then data_res[i,j]=total(data[ww]) / nn_w

endfor

Thank you for your help,
nata

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[Message index]

		help - speeding up a loop By: natha on Mon, 11 January 2016 09:29
		Re: help - speeding up a loop By: greg.addr on Wed, 13 January 2016 03:42
		Re: help - speeding up a loop By: Burch on Wed, 13 January 2016 06:26
		Re: help - speeding up a loop By: Burch on Wed, 13 January 2016 07:38
		Re: help - speeding up a loop By: natha on Wed, 13 January 2016 08:57

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