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spam (version 0.15-4)

SPArse Matrix

Description

Set of function for sparse matrix algebra. Differences with SparseM/Matrix are: (1) we only support (essentially) one sparse matrix format, (2) based on transparent and simple structure(s), (3) tailored for MCMC calculations within GMRF. (4) S3 and S4 like-"compatible" ... and it is fast.

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Version

Install

install.packages('spam')

Monthly Downloads

103,846

Version

0.15-4

License

GPL | file LICENSE

Maintainer

Reinhard Furrer

Last Published

April 15th, 2009

Functions in spam (0.15-4)

Transformation to other sparse formats

Mathematical functions

Sparse Matrix diagonals

Transform a spam format to triplets

Spam internal and auxiliary functions

Graphially represent the nonzero entries

spam operations

Basic Linear Algebra for Sparse Matrices

Brief overview of the history

Monthly total precipitation (mm) for April 1948 in the contiguous United States

SPArse Matrix Package

Options Settings

Dimensions of an Object

Specific options Setting

Rounding of Numbers

Sparse Matrix Class

Printing and summarizing sparse matrices

Kronecker products on sparse matrices

Small "ToDo" list

Read external matrix formats

Distance Matrix Computation

Extract the permutation

Test if a spam matrix is Symmetric

Rounding of Numbers

Lower and Upper Triangular Part of a Sparse Matrix

spam.chol.NgPeyton-class

Class "spam.chol.NgPeyton"

Display a spam Object as Color Image

Test if Two 'spam' Objects are (Nearly) Equal

Cholesky Factorization for Sparse Matrices

Linear Equation Solving for Sparse Matrices

Spam Version Information

Combine spam Matrices by Rows or Columns

Adjacency structure of the counties in the contiguous United States

Calculate the determinant of a positive definite Sparse Matrix