tensor.in: tensor model matrix for two marginal bases

In survPen: Multidimensional Penalized Splines for Survival and Net Survival Models

tensor model matrix for two marginal bases

Description

Function called recursively inside tensor.prod.X.

Usage

tensor.in(X1, X2)

Arguments

X1	first marginal design matrix with n rows and p1 columns
X2	first marginal design matrix with n rows and p2 columns

Value

Matrix of dimensions n*(p1*p2) representing the row tensor product of the matrices X1 and X2

Examples

library(survPen)

# row-wise tensor product between two design matrices
set.seed(15)

X1 <- matrix(rnorm(10*3),nrow=10,ncol=3)
X2 <- matrix(rnorm(10*2),nrow=10,ncol=2)
tensor.in(X1,X2)

survPen documentation built on Sept. 14, 2023, 1:06 a.m.