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Re: [Help-gsl] monotone spline

From: Rhys Ulerich
Subject: Re: [Help-gsl] monotone spline
Date: Thu, 4 Feb 2010 22:53:14 -0600

> I wonder If it is possile
> to impose a monotone condition on the overall function
> (in order not to result in oscillations, due to
> scattering data points).

Offhand, I'm not aware of how to directly impose a monotonicity
condition using B-splines.  Of course, you could always choose a basis
with fewer degrees of freedom than your number of sample points and
then perform a least squares fit.  You may still get some oscillations
for oscillatory data, but they should be much slower ones.  Tune as
appropriate for your application.

- Rhys

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