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

Matthieu Brucher matthieu.brucher@gmail....
Thu Jun 21 05:51:31 CDT 2007


>
> I guess you refer to the distribution of the error for *each single
> point*, not the distribution of the average error in the dataset for
> different points. In this case yes, it is Gaussian, so there should be
> no problem.



It is the distribution for all errors. If it is the same distribution for
all points, OK with least squares. If it is not, you have to scale the
points so that the errors follow the same gaussian law.


My question was different, anyway: each point can have a different error
> size (i.e. sigma of gaussian distribution) respect to its neighbours.
>
> m.
>
> --
> Massimo Sandal
> University of Bologna
> Department of Biochemistry "G.Moruzzi"
>
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> Via Irnerio 48, 40126 Bologna, Italy
>
> email:
> massimo.sandal@unibo.it
>
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