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README
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README
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Versions of `spam` prior to 1.00 included a LICENSE file that
described the license of some Fortran routines incompatible with the
general R philosophy. The routines are in src/cholmodified.f. For
the packages `SparseM` and `spam`, Esmond Ng and Barry Peyton have
very kindly given permission to use their routines under an open
source license (2012/03/09 and 2014/08/29). They have requested that
their code be credited via the following two publications:
Esmond G. Ng and Barry W. Peyton, "Block sparse Cholesky algorithms
on advanced uniprocessor computers". SIAM J. Sci. Stat. Comput.
14 (1993), pp. 1034-1056.
John R. Gilbert, Esmond G. Ng, and Barry W. Peyton, "An efficient
algorithm to compute row and column counts for sparse Cholesky
factorization". SIAM J. Matrix Anal. Appl. 15 (1994), pp. 1075-1091.
The old license file of `spam` versions <1.0 is in ./inst/0LICENCE