GCVSpline doesn't have any method to set errorVariance

[mrrezaie]

Hi, if I want to construct a GCVSpline() object, there isn't any method to set the errorVairance. I was wondering if you add the getErrorVariance and setErrorVariance methods for that. In this minimal example, the error variance remains zero as default (no smoothing):

GCVS = osim.GCVSpline()
GCVS.setDegree(5)
GCVS.addPoint(0.,1.)
print(GCVS.dump())

<GCVSpline>
    <half_order>3</half_order>
    <error_variance>0</error_variance>
    <x> 0</x>
    <y> 1</y>
    <weights> 1</weights>
    <coefficients> 0</coefficients>
</GCVSpline>

If I use GCVS.updPropertyByName('error_variance'), then how to change its value?

Also, it's not clear how to use this decorator in Python. What should be the aX and aF arguments?

Thank you in advance, and any help is greatly appreciated.

[nickbianco]

@mrrezaie aX and aF take pointers to arrays, so this constructor likely doesn't work in scripting. It would be better to add scripting-friendly accessors as you suggest.

If you're interested in submitting a PR, I'd be happy to review.

[mrrezaie]

I wish I could, but I know nothing about cpp; sorry.