why cann't you use 'try'? you can get the size of the file with 'file.info' and then make a decision to read or not.
Sent from my iPad On Jun 27, 2012, at 23:02, Jie Tang <totang...@gmail.com> wrote: > hi , > I am reading a series of files by the command shown as below. > cop_x_data<-read.table(flnm(i) > ,skip=2,allowEscapes=TRUE,blank.lines.skip=TRUE) > the first two line of the files are headfile and I skip them by skip=2. > and sometimes the data file is null and there is no any data > in the file except for the head information. > At this situation,my command would be in the error and tell me that > there is not data in the file and can not go on. > How can I skip out from the null file and go on reading the files while > reading ? > > I can not use to try and tryCatch ,can anyone tell me ? > thank you > > [[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. ______________________________________________ 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.