com.imsl.stat
Interface RegressionBasis

public interface RegressionBasis

Public interface for user supplied function to UserBasisRegression object.

Method Summary

double

basis(int index, double x) Public interface for the nonlinear least-squares function.

Method Detail

basis

double basis(int index,
             double x)

Public interface for the nonlinear least-squares function.

Parameters:

index - an int which specifies the index of the basis function to be evaluated at x

x - a double, the point at which the function is to be evaluated

Returns:

a double, the returned value of the function at x