triogramX {SparseM} | R Documentation |

## A Design Matrix for a Triogram Problem

### Description

This is a design matrix arising from a bivariate smoothing
problem using penalized triogram fitting. It is used in the SparseM vignette
to illustrate the use of the sparse matrix image function.

### Usage

data(triogramX)

### Format

A 375 by 100 matrix stored in compressed sparse row format

[Package

*SparseM* version 0.54

Index]