Thanks, Jorge. Yes, I can also run the code. But I would like to know the limitations on the lengths of variable names, formulas/equations, and files. Steve has pointed out a limitation on the length of a variable name is 256kb. So
abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789012345678901 <- 1 is OK and abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789012345678901 + abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789012345678902 OK too as long as both are claimed. Any ideas on lengths of formulas/equations? -james > Hi James, > > I ran all your code on a fresh R session (64 bit, OS X 10.6.0) and got no > errors. I suspect what Steve suggests is true: your computer is running > out > of memory. Have you tried running it on a 64 bit machine? > > Here is my sessionInfo(): > > R version 2.11.0 (2010-04-22) > x86_64-apple-darwin9.8.0 > > locale: > [1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > loaded via a namespace (and not attached): > [1] grid_2.11.0 lattice_0.18-5 tools_2.11.0 > > > HTH, > Jorge > > > On Wed, May 5, 2010 at 5:28 PM, <> wrote: > >> I would like to run R code from a file that is generated from other >> source. >> The file consists of some variables and formulas/equations such as >> >> Variables = log(100) >> ##Other variable definitions >> VariablesWithLongNames = 2*3*log(12345678)+10^4 + Variables >> Equations=log(VariablesWithLongNames)+Variables^2 >> ##Other equations, formulas >> Result = Equations^2+rnorm(10000) >> hist(Result,breaks=100,freq=FALSE) >> lines(density(Result),col = "blue") >> >> The file may be very long and some variable names may be very long too. >> We know that objects > 100Mb can cause R to run out of memory. Not sure >> if there are any other limitations on variable length and source file >> length. >> So my question is >> >> what are the limitations of variable name length and the source file >> length >> in R? >> >> Could you please drop a few lines or point me know where I can find >> them? >> Thanks, >> >> -james >> >> ______________________________________________ >> 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. >> > ______________________________________________ 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.
