Re: [Rd] best practice for packages using mclapply to avoid tcltk

2013-02-03 Thread Matt Blackwell
Hi Simon, Sorry to be a bother, but is "disabling the Tcl/Tk event loop in the forked processes" something that a package maintainer should do? If so, how? Again, apologies if I've missed something obvious. I maintain a package (Amelia) that has an optional tcltk GUI that folks can use and we are

Re: [Rd] Understanding svd usage and its necessity in generalized inverse calculation

2013-01-02 Thread Matt Blackwell
Hi all, On Tue, Jan 1, 2013 at 6:01 PM, Thomas Lumley wrote: > Now, if most of the matrices you are trying to invert are actually > invertible (as I would hope), it may be quicker to use the Cholesky > approach will a fallback to the SVD for semidefinite matrices. That is, > something like > >