funcharts (version 1.7.0)

tensor_product_mfd: Tensor product of two Multivariate Functional Data objects

Description

This function returns the tensor product of two Multivariate Functional Data objects. Each object must contain only one replication.

Usage

tensor_product_mfd(mfdobj1, mfdobj2 = NULL)

Value

An object of class bifd. If we denote with x(s)=(x_1(s),...,x_p(s)) the vector of p functions represented by mfdobj1 and with y(t)=(y_1(t),...,y_q(t)) the vector of q functions represented by mfdobj2, the output is the vector of pq bivariate functions

f(s,t)=(x_1(s)y_1(t),...,x_1(s)y_q(t), ...,x_p(s)y_1(t),...,x_p(s)y_q(t)).

Arguments

mfdobj1

A multivariate functional data object, of class mfd, having only one functional observation.

mfdobj2

A multivariate functional data object, of class mfd, having only one functional observation. If NULL, it is set equal to mfdobj1. Default is NULL.

Examples

library(funcharts)
mfdobj1 <- data_sim_mfd(nobs = 1, nvar = 3)
mfdobj2 <- data_sim_mfd(nobs = 1, nvar = 2)
tensor_product_mfd(mfdobj1)
tensor_product_mfd(mfdobj1, mfdobj2)