Dear Henrik and Steven, Thank you for your kind help and guidance even though it is a basic question. I misunderstood that "gunzip" is a part of not "R.utils" but "utils". I could find out the function in "R.utils". Then, it was successful to decompress any "gz" file as follows.
library(R.utils) gunzip("foo.gz") Best Regards, Wonsang [[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.