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spam (version 0.29-3)

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

0.29-3

License

GPL | file LICENSE

Maintainer

Reinhard Furrer

Last Published

April 24th, 2013

Functions in spam (0.29-3)

image

Display a spam Object as Color Image
cleanup

Cleaning up sparse matrices
makeprec

Create Precision Matrices
chol

Cholesky Factorization for Sparse Matrices
det

Calculate the determinant of a positive definite Sparse Matrix
dim

Dimensions of an Object
bandwidth

Bandwidth of a Sparse Matrix
powerboost

Specific options Setting
isSymmetric

Test if a spam matrix is Symmetric
toeplitz

Create Toeplitz Matrices
kronecker

Kronecker Products on Sparse Matrices
nearestdist

Distance Matrix Computation
apply

Apply Functions Over Sparse Matrix Margins
display

Graphially Represent the Nonzero Entries
lower.tri

Lower and Upper Triangular Part of a Sparse Matrix
spam operations

Basic Linear Algebra for Sparse Matrices
precmat

IGMRF Precision Matrices
triplet

Transform a spam format to triplets
spam-class

Class "spam"
todo

Small "ToDo" list
UScounties

Adjacency structure of the counties in the contiguous United States
Oral

Oral Cavity Cancer
bdiag

Binds Arrays Corner-to-Corner
complexity

Complexity for Sparse Matrices
spam

Sparse Matrix Class
head

Return the First or Last Part of an Object
allequal

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

Spam Version Information
germany

Administrative districts of Germany
. SPAM .

SPArse Matrix Package
Math

Mathematical functions
print

Printing and summarizing sparse matrices
ordering

Extract the permutation
rmvnorm

Draw Multivariate Normals
Summary

Rounding of Numbers
spam solve

Linear Equation Solving for Sparse Matrices
spam internal

Spam internal and auxiliary functions
diag

Sparse Matrix diagonals
mle

Maximum likelihood estimates
cbind

Combine spam Matrices by Rows or Columns
USprecip

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

Brief Overview of the History
spam methods

Methods for sparse matrices
import

Read External Matrix Formats
Math2

Rounding of Numbers
circulant

Create Circulant Matrices
foreign

Transformation to other sparse formats
spam.chol.NgPeyton-class

Class "spam.chol.NgPeyton"
rmvnorm.const

Draw Constrainted Multivariate Normals
rowSums

Form Row and Column Sums and Means
permutation

Permute a matrix
options

Options Settings