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How to speed up or remove this FOR loop [message #74453]

Fri, 14 January 2011 01:00

johan[1]
Messages: 11
Registered: December 2010

Junior Member

I do have 768 profiles, each 24 pixels long, each to whom I want to
fit a Gaussain and getting the mean and SD. I am using the following
FOR loop calling mpfitexpr. It works fine but it takes forever to
complete!

expr = 'P[0] + GAUSS1(X, P[1:3])'

t = indgen(24)
start = [20.D, 10, 2., 1000.]

for i=0,(size(profiles,/dim))[1]-1 do begin
r = profiles[*,i]
result = mpfitexpr(expr, t, r, 1, start, /QUIET)
endfor

Anyway to speed it up or to remove the FOR loop?

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[Message index]

		How to speed up or remove this FOR loop By: johan[1] on Fri, 14 January 2011 01:00
		Re: How to speed up or remove this FOR loop By: wlandsman on Fri, 21 January 2011 08:02
		Re: How to speed up or remove this FOR loop By: johan[1] on Tue, 25 January 2011 16:12

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