[R] Sparse Matrix Package

[Roger Koenker]

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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