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[matrix] View of /pkg/man/dMatrix-class.Rd
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View of /pkg/man/dMatrix-class.Rd

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Revision 1331 - (download) (as text) (annotate)
Sat Jul 22 17:59:53 2006 UTC (13 years, 8 months ago) by maechler
File size: 2564 byte(s)
many method cleanups; notably some "dgC" -> "Csparse" generaliztations
% Group methods
\alias{Math2,dMatrix,numeric-method}% Math2 = round + signif, but
% for silly reasons, need these 2+3 as well:
% operations with one argument from the "integer" class
\title{(Virtual) Class "dMatrix" of "double" Matrices}
  The \code{dMatrix} class is a virtual class contained by all actual
  classes of numeric matrices in the \pkg{Matrix} package.  Similarly,
  all the actual classes of logical matrices inherit from the
  \code{lMatrix} class.
%\section{Objects from the Class}{A virtual Class: No objects may be
%  created from it.
  Common to \emph{all} matrix object in the package:
    \item{\code{Dim}:}{Object of class \code{"integer"} - the dimensions
     of the matrix - must be an integer vector with exactly two
     non-negative values.}
    \item{\code{Dimnames}:}{list of length two; each component
      containing NULL or a \code{\link{character}} vector length
      equal the corresponding \code{Dim} element.}
  There are (very simplistic) group methods (see, e.g., \code{\link{Arith}})
    \item{Arith}{\code{signature(e1 = "dMatrix", e2 = "dMatrix")}: ... }
    \item{Arith}{\code{signature(e1 = "dMatrix", e2 = "numeric")}: ... }
    \item{Arith}{\code{signature(e1 = "numeric", e2 = "dMatrix")}: ... }
    \item{Math}{\code{signature(x = "dMatrix")}: ... }
    \item{Math2}{\code{signature(x = "dMatrix", digits = "numeric")}: ...}
% Martin + Doug\author{Douglas Bates \email{}}
  The classes \code{\linkS4class{dgeMatrix}},
  \code{\linkS4class{dgCMatrix}}, and \code{\linkS4class{Matrix}}.
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