[R] Sparse Matrix Package
Roger Koenker
roger at ysidro.econ.uiuc.edu
Mon Oct 21 14:30:19 CEST 2002
R_go_nots:
We would like to call your attention to a new R package called SparseM.
The package offers a reasonably transparent access to basic linear
algebra including linear equation solving for sparse matrices.
Functions for solving sparse linear least squares problems
are provided to illustrate the approach. Since only the non-zero
elements of the relevant matrices are stored, significant improvements
in both memory requirements and computational speed are possible
in some problems. The package includes an R vignette that describes
the design philosophy and discusses several examples.
We would, of course, welcome comments on any aspect of the package.
Roger Koenker and Pin Ng
url: http://www.econ.uiuc.edu Roger Koenker
email roger at ysidro.econ.uiuc.edu Department of Economics
vox: 217-333-4558 University of Illinois
fax: 217-244-6678 Champaign, IL 61820
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