Simplest is to save your workspace using save.image(), then delete a bunch of large objects other than the data frame that you want to export, and run write.table() again, now that you've made space for it. A quick calc shows 17000 x 400 x 8 = 55 Mb, and that's just the size of the object that chokes R below.
- tom blackwell - u michigan medical school - ann arbor - On Mon, 8 Sep 2003, array chip wrote: > I am having trouble of exporting a large data frame > out of R to be used in other purpose. The data frame > is numeric with size 17000x400. It takes a quite some > time to start R as well. my computer has 1GB RAM. I > used the following command to write the data frame to > a text file and got the error message below: > > > write.table(xxx, "C:\\xxx", sep="\t", > row.names=FALSE,col.names=FALSE,quote=FALSE) > > Error: cannot allocate vector of size 55750 Kb > In addition: Warning message: > Reached total allocation of 1023Mb: see > help(memory.size) > > I tried to increase the memory size by > memory.size(size=), but it seems running the above > command takes forever. > > what can I do with this error message to get the data > out? > > Thanks ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
