add: I used trn<-matrix(scan('train1.dat', sep='|', na.string='.'), nrow=273529, ncol=195)
it is done. so it seems that I just have no patience to wait for half an hour :) but i still have that question: is there a way to track the process if it takes too long. Could we stop in the middle to see at which line it "hesitates" to move on? regards, weiwei On 7/13/05, Weiwei Shi <[EMAIL PROTECTED]> wrote: > Hi, > I have a question on read.table. > > I have a dataset with 273,000 lines and 195 columns. I used the > read.table to load the data into R: > trn<-read.table('train1.dat', header=F, sep='|', na.strings='.') > I found it takes forever. > > then I run 1/10 of the data (test) using read.table again. And this > time it finished quickly. So, there might be something wrong in my > data format causing that problem. > > then, my question is, is there a way in R to track at which line, > something wrong occurs? > > Thanks, > > Weiwei > > > -- > Weiwei Shi, Ph.D > > "Did you always know?" > "No, I did not. But I believed..." > ---Matrix III > -- Weiwei Shi, Ph.D "Did you always know?" "No, I did not. But I believed..." ---Matrix III ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html