3.5.4.2. scipy.interpolate.BivariateSpline¶

class scipy.interpolate.BivariateSpline[source]¶

Base class for bivariate splines.

This describes a spline s(x, y) of degrees kx and ky on the rectangle [xb, xe] * [yb, ye] calculated from a given set of data points (x, y, z).

This class is meant to be subclassed, not instantiated directly. To construct these splines, call either SmoothBivariateSpline or LSQBivariateSpline.

See also

UnivariateSpline

a similar class for univariate spline interpolation

SmoothBivariateSpline

to create a BivariateSpline through the given points

LSQBivariateSpline

to create a BivariateSpline using weighted least-squares fitting

SphereBivariateSpline

bivariate spline interpolation in spherical cooridinates

bisplrep

older wrapping of FITPACK

bisplev

older wrapping of FITPACK

__init__()¶

x.__init__(...) initializes x; see help(type(x)) for signature

Methods

ev(xi, yi[, dx, dy])	Evaluate the spline at points
get_coeffs()	Return spline coefficients.
get_knots()	Return a tuple (tx,ty) where tx,ty contain knots positions of the spline with respect to x-, y-variable, respectively.
get_residual()	Return weighted sum of squared residuals of the spline
integral(xa, xb, ya, yb)	Evaluate the integral of the spline over area [xa,xb] x [ya,yb].