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View of /pkg/Matrix/man/externalFormats.Rd

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Revision 826 - (download) (as text) (annotate)
Sun Aug 7 16:28:57 2005 UTC (13 years, 7 months ago) by bates
Original Path: pkg/man/externalFormats.Rd
File size: 899 byte(s)
add examples of external formats
\name{externalFormats}
\alias{readHB}
\alias{readMM}
\title{Read and write external matrix formats}
\description{
    Read matrices stored in the Harwell-Boeing or MatrixMarket formats.
}
\usage{
readHB(filename)
readMM(filename)
}
\arguments{
  \item{filename}{the name of the file to read, as a character scalar.
    The names of files storing matrices in the Harwell-Boeing format
    usually end in \code{".rua"} or \code{".rsa"}.  Those storing
    matrices in the MatrixMarket format usually end in {".mtx"}.}
}
\value{
  An object that inherits from the \code{"Matrix"} class.
}
\references{
  \url{http://math.nist.gov/MatrixMarket}

  \url{http://www.cise.ufl.edu/research/sparse/matrices}
}
\examples{
str(pores <- readMM(system.file("external/pores_1.mtx", package = "Matrix")))
str(utm <- readHB(system.file("external/utm300.rua", package = "Matrix")))
}
\keyword{IO}
\keyword{algebra}


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