The <code>"RsparseMatrix"</code> class is the virtual class of
 all sparse matrices coded in sorted compressed row-oriented form.
 Since it is a virtual class, no objects may be created from it. See
 <code>showClass("RsparseMatrix")</code> for its subclasses.

RsparseMatrix-class

A rich hierarchy of sparse and dense matrix classes,
including general, symmetric, triangular, and diagonal matrices
with numeric, logical, or pattern entries.  Efficient methods for
operating on such matrices, often wrapping the 'BLAS', 'LAPACK',
and 'SuiteSparse' libraries.

Martin Maechler

Matrix

Sparse and Dense Matrix Classes and Methods

Douglas Bates

Mikael Jagan

Timothy A. Davis

George Karypis

Jason Riedy

Jens Oehlschlägel

R Core Team 

RsparseMatrix-class function

Class "RsparseMatrix" of Sparse Matrices in Row-compressed Form — RsparseMatrix-class

<dl>
 <dt><code>j</code>:</dt>
<dd>Object of class <code>"integer"</code> of length <code>nnzero</code>
 (number of non-zero elements). These are the row numbers for
 each non-zero element in the matrix.</dd>

 <dt><code>p</code>:</dt>
<dd>Object of class <code>"integer"</code> of pointers, one
 for each row, to the initial (zero-based) index of elements in
 the row.</dd>

 <dt><code>Dim</code>, <code>Dimnames</code>:</dt>
<dd>inherited from
 the superclass, see <code>sparseMatrix</code>.</dd>

 
</dl>

Slots

Class <code>"sparseMatrix"</code>, directly.
 Class <code>"Matrix"</code>, by class <code>"sparseMatrix"</code>.

Extends

Originally, few methods were defined on purpose, as we
 rather use the <code>CsparseMatrix</code> in Matrix.
 Then, more methods were added but beware that these
 typically do not return <code>"RsparseMatrix"</code> results, but
 rather Csparse* or Tsparse* ones; e.g., <code>R[i, j] &lt;- v</code> for an
 <code>"RsparseMatrix"</code> <code>R</code> works, but after the assignment, <code>R</code>
 is a (triplet) <code>"TsparseMatrix"</code>.<dl>
 <dt>t</dt>
<dd><code>signature(x = "RsparseMatrix")</code>: ...</dd>

 <dt>coerce</dt>
<dd><code>signature(from = "RsparseMatrix", to = "CsparseMatrix")</code>: ...</dd>

 <dt>coerce</dt>
<dd><code>signature(from = "RsparseMatrix", to = "TsparseMatrix")</code>: ...</dd>

 
</dl>

RsparseMatrix-class: Class "RsparseMatrix" of Sparse Matrices in Row-compressed Form

Description

Arguments

See Also

Examples