插值（scipy.interpolate）
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2022-09-04 14:03:32
https://docs.scipy.org/doc/scipy/reference/interpolate.html#module-scipy.interpolate https://*.com/questions/31464345/fitting-a-closed-cur ......
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.interp1d（x，y，kind ='linear'，axis = -1，copy = true，bounds_error = none，fill_value = nan，assume_sorted = false ）
scipy.interpolate.barycentricinterpolator
class scipy.interpolate.barycentricinterpolator（xi，yi = none，axis = 0 ）
样条：
scipy.interpolate.splprep
scipy.interpolate.splprep(x, w=none, u=none, ub=none, ue=none, k=3, task=0, s=none, t=none, full_output=0, nest=none, per=0, quiet=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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