Philipp, you are a savior! That's exactly what has been happening - and it was driving me crazy. quote="" fixed things. Thank you very much! Dimitri
On Wed, Mar 30, 2011 at 5:01 AM, Philipp Pagel <p.pa...@wzw.tum.de> wrote: > On Tue, Mar 29, 2011 at 06:58:59PM -0400, Dimitri Liakhovitski wrote: >> I have a tab-delimited .txt file (size 800MB) with about 3.4 million >> rows and 41 columns. About 15 columns contain strings. >> Tried to read it in in R 2.12.2 on a laptop that has Windows XP: >> mydata<-read.delim(file="FileName.TXT",sep="\t") >> R did not complain (!) and I got: dim(mydata) 1692063 41. > > My guess would be that there are (unexpected) quotes and/or double quotes in > your > file and so R thinks that rather large blocks of your file are > actually very long strings. This routinely happens in situations like > this: > > ID x description > 1 0.4 my first measurement > 2 1.6 Normal 5" object > 3 0.4 Some measuremetn > 4 0.7 A 4" long sample > > R thinks that the description in row 2 ends in row 4 and you loose > data. > > Try read.delim(..., quote=""). > > cu > Philipp > > -- > Dr. Philipp Pagel > Lehrstuhl für Genomorientierte Bioinformatik > Technische Universität München > Wissenschaftszentrum Weihenstephan > Maximus-von-Imhof-Forum 3 > 85354 Freising, Germany > http://webclu.bio.wzw.tum.de/~pagel/ > > ______________________________________________ > 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. > -- Dimitri Liakhovitski Ninah Consulting www.ninah.com ______________________________________________ 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.
