bifd-plus-class: Bivariate Function Using Basis Expansion

In yixuan/fdaplus: Enhancement of the 'fda' package for functional data analysis

Description

This class defines bivariate functions that can be expressed by two sets of basis functions and the associated coefficient matrix. It takes the following form:

Details

K(s, t) = sum_{i,j} a_{ij} * f_i(s) * g_j(t)

Here K(s, t) is the bivariate function, f_i and g_j are two basis systems, and A = (a_{ij}) is the coefficient matrix.

Slots

sbasis,tbasis

Basis objects of class basis+, not necessarily of the same type (for example, one can be bspline+ and the other be fourier+).

coefs

A matrix of dimension m by n where m is the number of functions in sbasis, and n is the number of functions in tbasis.

yixuan/fdaplus documentation built on May 4, 2019, 5:29 p.m.