index-class

The class <code>"index"</code> is a virtual class used for
 indices (in signatures) for matrix indexing and sub-assignment of
 Matrix matrices.
In fact, it is currently implemented as a simple class union
 (<code><a rd-options="" href="/link/setClassUnion?package=Matrix&version=1.4-0" data-mini-rdoc="Matrix::setClassUnion">setClassUnion</a></code>) of
 <code>"numeric"</code>, <code>"logical"</code> and <code>"character"</code>.

classes

A rich hierarchy of matrix classes, including triangular,
symmetric, and diagonal matrices, both dense and sparse and with
pattern, logical and numeric entries.   Numerous methods for and
operations on these matrices, using 'LAPACK' and 'SuiteSparse' libraries.

Martin Maechler

Matrix

Sparse and Dense Matrix Classes and Methods

Douglas Bates

Timothy A. Davis

Jens Oehlschl<c3><a4>gel

Jason Riedy

R Core Team 

index-class function

Since it is a virtual Class, no objects
 may be created from it.

Objects from the Class

The class <code>"index"</code> is a virtual class used for
 indices (in signatures) for matrix indexing and sub-assignment of
 Matrix matrices.
In fact, it is currently implemented as a simple class union
 (<code><a rd-options='' href='setClassUnion'>setClassUnion</a></code>) of
 <code>"numeric"</code>, <code>"logical"</code> and <code>"character"</code>.

index-class: Virtual Class "index" - Simple Class for Matrix Indices

Description

Arguments

Objects from the Class

See Also

Examples