[SciPy-User] [Numpy-discussion] Fitting a curve on a log-normal distributed data

Robert Kern robert.kern@gmail....
Tue Nov 17 16:27:06 CST 2009


On Tue, Nov 17, 2009 at 16:21, Gökhan Sever <gokhansever@gmail.com> wrote:

> Besides, what is wrong with using the spline interpolation technique? It
> fits nicely on my sample data. See the resulting image here:
> http://img197.imageshack.us/img197/9638/sizeconcsplinefit.png    (Green line
> represents the fit spline)

What spline interpolation technique? That certainly doesn't look like
a good spline fit. In any case, splines may be fine for
*interpolation*, but you need *extrapolation*, and splines are useless
for that. You need a physically-motivated model like the distributions
recommended by your textbook.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
  -- Umberto Eco


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