search for: mumps

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2006 Jul 02
1
sparse matrix tools
Dear R-Help list: I'm using the Matrix library to operate on 600 X ~5000 element unsymmetrical sparse arrays. So far, so good, but if I find I need more speed or functionality, how hard would it be to utilize other sparse matrix toolsets from within R, say MUMPS, PARDISO or UMFPACK, that do not have explicit R interfaces? More information on these is available here www.cise.ufl.edu/research/sparse/umfpack/ www.computational.unibas.ch/cs/scicomp/software/pardiso www.enseeiht.fr/lima/apo/MUMPS/ and in these reviews ftp://ftp.numerical.rl.ac.uk...
2005 Aug 19
0
Form.Element.getValue for checkboxes and radios?
...;fieldset> <legend>Medical History</legend> <input name="history_illness" type="checkbox" value="Smallpox" /> Smallpox <input name="history_illness" type="checkbox" value="Mumps" /> Mumps <input name="history_illness" type="checkbox" value="Dizziness" /> Dizziness <input name="history_illness" type="checkbox" value="Sneezing" /> Sneezing </fiel...
2009 Feb 22
2
[SoC09-Info] An IPopt interface for R
There have been several messages on R-devel mentioning the interior point optimization software Ipopt, https://projects.coin-op/Ipopt/. This C++ library is released under a license called the Common Public License. I have two questions that readers of R-devel may be able to answer. 1) Would creating an Ipopt interface for R be duplicating existing efforts? That is, has someone already done so