Re: [R] exponential of a matrix

2008-11-14 Thread Martin Maechler
> "MM" == Martin Maechler <[EMAIL PROTECTED]> > on Fri, 14 Nov 2008 18:05:54 +0100 writes: > "DW" == David Winsemius <[EMAIL PROTECTED]> > on Tue, 11 Nov 2008 17:52:18 -0500 writes: DW> In 2004 Martyn Plummer said that functionality was DW> available in packages ms

Re: [R] exponential of a matrix

2008-11-14 Thread Martin Maechler
> "DW" == David Winsemius <[EMAIL PROTECTED]> > on Tue, 11 Nov 2008 17:52:18 -0500 writes: DW> In 2004 Martyn Plummer said that functionality was DW> available in packages msm (as MatrixExp) and Lindsey's DW> rmutils (as mexp) Well, thses two use one of the very dubious wa

Re: [R] exponential of a matrix

2008-11-14 Thread Martin Maechler
> "PD" == Peter Dalgaard <[EMAIL PROTECTED]> > on Tue, 11 Nov 2008 23:46:49 +0100 writes: PD> Terry Therneau wrote: >> Is the matrix exponential available in some package? PD> Multiple. At least Matrix and msm. One of Jim Lindsey's PD> too, but I think that's one of th

Re: [R] exponential of a matrix

2008-11-12 Thread Vincent Goulet
Le mar. 11 nov. à 17:20, Terry Therneau a écrit : Is the matrix exponential available in some package? You may also have a look at the expm package for a very straightforward operator: http://r-forge.r-project.org/projects/expm/ Disclaimer: although entirely usable, the package i

Re: [R] exponential of a matrix

2008-11-11 Thread seanpor
Good morning, Try expm() in the Matrix package by Douglas Bates and Martin Maechler http://www.stats.bris.ac.uk/R/web/packages/Matrix/index.html Note that there is a revised version of that paper, refer: Cleve Moler and Charles Van Loan (2003) Nineteen dubious ways to compute the exponential of

Re: [R] exponential of a matrix

2008-11-11 Thread David Winsemius
In 2004 Martyn Plummer said that functionality was available in packages msm (as MatrixExp) and Lindsey's rmutils (as mexp) David Firth also offered: http://www2.warwick.ac.uk/fac/sci/statistics/staff/academic/firth/software/mexp -- David Winsemius On Nov 11, 2008, at 5:20 PM, Terry Therneau

Re: [R] exponential of a matrix

2008-11-11 Thread Peter Dalgaard
Terry Therneau wrote: Is the matrix exponential available in some package? Multiple. At least Matrix and msm. One of Jim Lindsey's too, but I think that's one of the more dubious ones. The cannonical reference is "Nineteen dubious ways to take the exponential of a matrix". (Love that ti

[R] exponential of a matrix

2008-11-11 Thread Terry Therneau
Is the matrix exponential available in some package? The cannonical reference is "Nineteen dubious ways to take the exponential of a matrix". (Love that title) Terry T. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listi