[SciPy-user] nonlinear fit with non uniform error?

massimo sandal massimo.sandal@unibo...
Thu Jun 21 04:24:58 CDT 2007


Sorry, but I am quite a noob in serious data analysis (degree in 
molecular biology, sigh)...

> The easiest solution is to rescale your y values by the uncertainties
> before doing the fit.

What do you mean by that?

> Now, if your errors are not Gaussian, least-squares is no longer the
> correct approach and your life becomes more difficult...

In which sense not Gaussian? In the sense that for each point, the 
uncertainity is not Gaussian distributed? It should at least with good 
approximation be. If it is in another sense, please explain...

thanks,
m.

-- 
Massimo Sandal
University of Bologna
Department of Biochemistry "G.Moruzzi"

snail mail:
Via Irnerio 48, 40126 Bologna, Italy

email:
massimo.sandal@unibo.it

tel: +39-051-2094388
fax: +39-051-2094387
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