Adjacency Structure of the Counties in the Contiguous United States
Monthly Total Precipitation (mm) for April 1948 in the Contiguous United States
Test if Two Sparse Matrices are (Nearly) Equal
Apply Functions Over Sparse Matrix Margins
Combine Sparse Matrices by Rows or Columns
Cholesky Factorization for Sparse Matrices
Force a 'spam' Object to Belong to a Class
Determinant of a Symmetric Positive Definite Sparse Matrix
Graphially Represent the Nonzero Entries
Plot Administrative Districts of Germany
Meta-data About Administrative Districts of Germany
Return the First or Last Part of an Object
Large 64-bit matrices require the R package 'spam64'
Lower and Upper Triangular Part of a Sparse Matrix
Printing and Summarizing Sparse Matrices
Basic Linear Algebra for Sparse Matrices
Linear Equation Solving for Sparse Matrices