Here's how to use it: f <- function() { <<here comes your code>> }
system.time( f() ) It is not required to define a function, but i think it is easier. Gabor On Thu, Sep 13, 2007 at 04:16:45PM +0100, gang xu wrote: > Dear R users and experts, > > I am current running a program (a series of commands) in R. such as: > > A <- as.matrix(read.table("C:/LP.txt")); > > a=which(memb==q); b=a; B=as.matrix(A[a,b]) > > LS=sum(B)/2; > > TL=sum(A)/2 > > i<-c(1:NN); > > D=sum(A[a,i]); > > how can i obtain the CPU time used for these commands ? > > I have seen the system.time function but i am not sure how to use it. Could > anyone help me ? > > ****** If we have a number of commands, how can we know the CPU for these > commands ******* > > > Thanks a lot for your time and help > > Have a nice day! > > Warm Regards > > Marshall > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Csardi Gabor <[EMAIL PROTECTED]> MTA RMKI, ELTE TTK ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.