From: Jim Lindsey <jlindsey@luc.ac.be> Message-Id: <9611250856.AA02271@alpha.luc.ac.be> Subject: R-alpha: missing functions To: r-testers@stat.math.ethz.ch Date: Mon, 25 Nov 1996 09:56:53 +0100 (MET) 1. It would be nice to have the following simple functions (that I have defined for myself but are not standard in R0.13), one of which was recently mentioned my someone else: sequence (in the help, but not defined) crossprod weighted.mean %o% 2. In the help/manual debate, I would strongly advocate that a simple more/less help within R be maintained, whatever other solution is adopted. It should always be possible to define help() such that the pages come up in the same window that R is using. 3. A slightly corrected version of my previous mexp, that works with asymmetric matrices (thanks to Malcolm Faddy) while we wait for complex numbers in R, and without heavy programming (I leave out the checking). The defaults work well with me for 25x25 matrices. Jim mexp <- function(x, t=1, n=20, k=3){ xx <- x*t/2^k p <- diag(dim(x)[1]) q <- p for(r in 1:n){ q <- xx%*%q/r p <- p+q} for(i in 1:k) p <- p%*%p p} =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- r-testers mailing list -- For info or help, send "info" or "help", To [un]subscribe, send "[un]subscribe" (in the "body", not the subject !) To: r-testers-request@stat.math.ethz.ch =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-