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spam (version 0.15-1)

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

0.15-1

License

GPL | file LICENSE

Maintainer

Reinhard Furrer

Last Published

July 3rd, 2017

Functions in spam (0.15-1)

Printing and summarizing sparse matrices

Graphially represent the nonzero entries

Combine spam Matrices by Rows or Columns

Distance Matrix Computation

spam.chol.NgPeyton-class

Class "spam.chol.NgPeyton"

Sparse Matrix Class

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

Read external matrix formats

Extract the permutation

Spam internal and auxiliary functions

Adjacency structure of the counties in the contiguous United States

Lower and Upper Triangular Part of a Sparse Matrix

Calculate the determinant of a positive definite Sparse Matrix

Display a spam Object as Color Image

Kronecker products on sparse matrices

Rounding of Numbers

Transformation to other sparse formats

spam operations

Basic Linear Algebra for Sparse Matrices

Brief overview of the history

Small "ToDo" list

Transform a spam format to triplets

Mathematical functions

Options Settings

Dimensions of an Object

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

Sparse Matrix diagonals

Cholesky Factorization for Sparse Matrices

Linear Equation Solving for Sparse Matrices

Spam Version Information

Test if a spam matrix is Symmetric