[SciPy-user] fitpack spline fitting of periodic data
Jakob Nielsen
jtoudahl.nielsen at gmail.com
Mon Mar 9 09:04:05 EDT 2009
Dear scipy users I am trying to use the per<>0 option in the fitpack routine
splrep of /scipy/interpolate/fitpack.py
The below test script gives an error: "ValueError: Error on input data":
ar=linspace(0,2*pi,30)
vals=sin(ar)
ar[-1]=2*pi
knots=arange(30,360,30)*pi/180.0
tck=splrep(ar,vals,t=knots,per=1)
There is no errors using per=0, there is also errors using no t=None and
per=1.
Am I missing something? I though the first and last point of the x-values
should encode the periodicity.
hope you can help me,
best regards, JTN
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