gzfile() produces large files
On Wed, 27 Jun 2001, Uwe Ligges wrote:
I observed some strange results playing around with gzfile() [R-1.3.0,
WinNT 4.0]:
At first
x <- 1:1000
write(x, file = "c:/temp.txt")
results in a file of about 4 kB. But
my.con <- gzfile("c:/temp.gz", open = "w")
write(x, file = my.con)
close(my.con)
results in a file of about 16 kB.
I expected a reduction of the size. Anyone who can tell me what went
wrong?
My experiments concur: I do get a 15913 byte file and it is a valid gzip file. I've used this much more to read compressed files than write them. I will take a closer look at the zlib specs when I have time. Brian
Brian D. Ripley, ripley at 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-help 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-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._