If you want to use colClasses, then do: read.table(...., colClasses=rep('numeric', 50))
On Feb 12, 2008 5:40 PM, Weidong Gu <[EMAIL PROTECTED]> wrote: > I have a data file with 50 columns. Among them, there are two > coordinates, X and Y > > X > > Y > > 641673.78807 > > 3607080.78438 > > 641436.56207 > > 3607108.30543 > > 641165.28042 > > 3607136.82957 > > 640879.58373 > > 3607116.20568 > > > > When I use read.table, it rounds X and Y to the maximal 8 decimal number > as. > > > > 641673.8 3607081 > > 641436.6 3607108 > > 641165.3 3607137 > > 640879.6 3607116 > > 640683.5 3607105 > > > > My question is how to specify these two columns in read.table. Maybe > colClasses helps but I have 50 columns... > > > > Thanks > > > > Weidong Gu, > > Department of Medicine > University of Alabama, Birmingham > 1900 University Blvd., Birmingham, Alabama 35294 > Email: [EMAIL PROTECTED] > PH: (205)-975-9053 > > > > > [[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<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 you are trying to solve? [[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.