https://github.com/cran/Matrix
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Tip revision: 67eb2046519f9d895c3e8b5928bd87a35e47aba4 authored by Douglas Bates on 01 May 2004, 00:00:00 UTC
version 0.8-7
version 0.8-7
Tip revision: 67eb204
mm.Rd
\name{mm}
\alias{mm}
\docType{data}
\title{A sample sparse model matrix}
\description{
A model matrix used in an example by Koenker and Ng. This is a sparse
matrix with 1850 rows and 712 columns but only 8758 non-zero entries.
It is a \code{"cscMatrix"} object.
}
\usage{data(mm)}
%\details{}
%\source{}
\references{
Roger Koenker and Pin Ng (2003), ``SparseM: A sparse matrix package
for R'', \emph{J. of Statistical Software}, 8(6).
}
\examples{
data(mm)
data(y)
class(mm)
dim(mm)
str(mm)
str(y)
sparse.sol = solve(crossprod(mm), crossprod(mm, y))
str(sparse.sol)
}
\keyword{datasets}