OS calls
On Wed, 21 Jun 2000, Paul Gilbert wrote:
P.S.
sleep <- function(n) {system.call(paste("sleep ", n))} # pause for n seconds
That's on my TODO list (but allowing sub-sec accuracy). KH suggested that we hide names like that behind a .Sys call (but then he introduced getwd). There is already at least one object called sleep (a dataset) in an R package.
Changing these names is fine with me.
BTW, your sleep function is a really bad idea in a GUI environment (GNOME or tcltk or even an X11 graphics device) as it blocks all GUI events. The version I use for the Windows port of xgobi sleeps for 500ms, then wakes up and handles Windows events, goes back to sleep .... S-PLUS runs its graphics devices (on Unix) in separate processes, but R does not.
Brian D. Ripley, ripley@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._