Dear R people, I have a very big tab-delim txt file with header and I only want to import several columns into R. I checked the options for “read.table” and only found “nrows” which lets you specify the maximum number of rows to read in. Although I can use some text editors (e.g., wordpad) to edit the txt file first before running R, I feel it’s not very convenient. The reason for me to do this is that if I import the whole file into R, it will eat up too much of my system’s memory. Even after I remove it later, I still can’t release the memory.
Anyone has any suggestions? Thank you very much, Frank ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
