scipy.interpolate

Interpolation (scipy.interpolate)

Sub-package for functions and objects used in interpolation.

See the user guide <tutorial-interpolate> for recommendations on choosing a routine, and other usage details.

Univariate interpolation

.. autosummary:: 
    :toctree:generated/
    make_interp_spline
    CubicSpline
    PchipInterpolator
    Akima1DInterpolator
    FloaterHormannInterpolator
    BarycentricInterpolator
    KroghInterpolator
    CubicHermiteSpline

Low-level data structures for univariate interpolation:

.. autosummary:: 
    :toctree:generated/
    PPoly
    BPoly
    BSpline

Multivariate interpolation

Unstructured data

.. autosummary:: 
    :toctree:generated/
    LinearNDInterpolator
    NearestNDInterpolator
    CloughTocher2DInterpolator
    RBFInterpolator

For data on a grid:

.. autosummary:: 
    :toctree:generated/
    RegularGridInterpolator

Low-level data structures for tensor product polynomials and splines:

.. autosummary:: 
    :toctree:generated/
    NdPPoly
    NdBSpline

1-D spline smoothing and approximation

.. autosummary:: 
    :toctree:generated/
    make_lsq_spline
    make_smoothing_spline
    make_splrep
    make_splprep
    generate_knots

Rational Approximation

.. autosummary:: 
    :toctree:generated/
    AAA

Interfaces to FITPACK routines for 1D and 2D spline fitting

This section lists wrappers for FITPACK functionality for 1D and 2D smoothing splines. In most cases, users are better off using higher-level routines listed in previous sections.

1D FITPACK splines

This package provides two sets of functionally equivalent wrappers: object-oriented and functional.

Functional FITPACK interface:

.. autosummary:: 
    :toctree:generated/
    splrep
    splprep
    splev
    splint
    sproot
    spalde
    splder
    splantider
    insert

Object-oriented FITPACK interface:

.. autosummary:: 
    :toctree:generated/
    UnivariateSpline
    InterpolatedUnivariateSpline
    LSQUnivariateSpline

2D FITPACK splines

For data on a grid:

.. autosummary:: 
    :toctree:generated/
    RectBivariateSpline
    RectSphereBivariateSpline

For unstructured data (OOP interface):

.. autosummary:: 
    :toctree:generated/
    BivariateSpline
    SmoothBivariateSpline
    SmoothSphereBivariateSpline
    LSQBivariateSpline
    LSQSphereBivariateSpline

For unstructured data (functional interface):

.. autosummary:: 
    :toctree:generated/
    bisplrep
    bisplev

Additional tools

.. autosummary:: 
    :toctree:generated/
    lagrange
    approximate_taylor_polynomial
    pade

    interpn
    griddata
    barycentric_interpolate
    krogh_interpolate
    pchip_interpolate
    Rbf
    interp1d
    interp2d