Hi Phillip, LSQSphereBivariateSpline sets s=0.0: https://github.com/scipy/scipy/blob/master/scipy/interpolate/src/fitpack.pyf... If you want smoothing, you can use SmoothSphereBivariateSpline, which is also a wrapper for sphere.f, where you can set s to your liking. Best, Andreas. On 22.07.2015 06:25, Phillip Feldman wrote:

I have a concern about using `scipy.interpolate.LSQSphereBivariateSpline`. The underlying Fortran function (http://www.netlib.org/dierckx/sphere.f) accepts a smoothing parameter `s`, but it looks as though the wrapper function `scipy.interpolate.LSQSphereBivariateSpline` does not accept this parameter. So, I wonder what value of `s` gets passed to the Fortran.

Phillip

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-- -- Andreas.