reading text files compressed by gzip
What did the data appear like when it was read in? Have you just tried to read in the lines (readLines) to see if the decompression is working? Does this compare to what you get if you decompress the file outside of R? Not exactly sure what you mean by "force" since the command it probably reading in what it thinks is a complete file. Are there characters in the file that might cause it to stop reading, or to bunch up data differently (e.g., misplaced quotes). Some more information has to be provided to guess what your problem might be.
On Tue, Feb 24, 2009 at 9:13 AM, Daren Tan <darentan76 at gmail.com> wrote:
I have a number of text files that were archived by gzip. To save the trouble of uncompressing them, I used the following command. Then I checked the dimension of m, the number of rows is 14 which should be 10000. How can I "force" the remaining rows to be read into m ?
m <- read.delim(gzfile("Sample.txt.gz"), sep="\t").
dim(m)
[1] 14 15
sessionInfo()
R version 2.8.0 (2008-10-20) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 attached base packages: [1] stats ? ? graphics ?grDevices utils ? ? datasets ?methods ? base other attached packages: [1] gplots_2.6.0 gdata_2.4.2 ?gtools_2.5.0 loaded via a namespace (and not attached): [1] tools_2.8.0
______________________________________________ R-help at 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.
Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve?