插值(scipy.interpolate)

2018-12-24 09:06:13来源:博客园 阅读 ()

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https://docs.scipy.org/doc/scipy/reference/interpolate.html#module-scipy.interpolate

https://stackoverflow.com/questions/31464345/fitting-a-closed-curve-to-a-set-of-points

包含样条函数和类,一维和多维(单变量和多变量)插值类,拉格朗日和泰勒多项式插值器,以及FITPACK 和DFITPACK函数的封装。

Univariate interpolation

scipy.interpolate.interp1d

class scipy.interpolate.interp1dxykind ='linear'axis = -1copy = Truebounds_error = Nonefill_value = nanassume_sorted = False 

 

scipy.interpolate.BarycentricInterpolator

class scipy.interpolate.BarycentricInterpolatorxiyi = Noneaxis = 0 

 

样条:

scipy.interpolate.splprep

scipy.interpolate.splprep(xw=Noneu=Noneub=Noneue=Nonek=3task=0s=Nonet=Nonefull_output=0nest=Noneper=0quiet=1)

 

Find the B-spline representation of an N-dimensional curve.

Given a list of N rank-1 arrays, x, which represent a curve in N-dimensional space parametrized by u, find a smooth approximating spline curve g(u). Uses the FORTRAN routine parcur from FITPACK.

 

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