triogramX: A Design Matrix for a Triogram Problem

Description Usage Format References

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

1

Format

A 375 by 100 matrix stored in compressed sparse row format

References

Koenker, R and Ng, P. (2002). SparseM: A Sparse Matrix Package for R,
http://www.econ.uiuc.edu/~roger/research/home.html


SparseM documentation built on Feb. 18, 2021, 5:06 p.m.