org.apache.commons.math.analysis.interpolation

Interface BivariateRealGridInterpolator

All Known Implementing Classes:

BicubicSplineInterpolator, SmoothingBicubicSplineInterpolator, SmoothingPolynomialBicubicSplineInterpolator

public interface BivariateRealGridInterpolator

Interface representing a bivariate real interpolating function where the sample points must be specified on a regular grid.

Method Summary

Modifier and Type	Method and Description
BivariateRealFunction	interpolate(double[] xval, double[] yval, double[][] fval) Computes an interpolating function for the data set.

Method Detail

interpolate

BivariateRealFunction interpolate(double[] xval,
                                  double[] yval,
                                  double[][] fval)
                           throws MathException

Computes an interpolating function for the data set.

Parameters:

xval - All the x-coordinates of the interpolation points, sorted in increasing order.

yval - All the y-coordinates of the interpolation points, sorted in increasing order.

fval - The values of the interpolation points on all the grid knots: fval[i][j] = f(xval[i], yval[j]).

Returns:

a function which interpolates the data set.

Throws:

MathException - if arguments violate assumptions made by the interpolation algorithm.