Dear all, I have a repository file (let's call it repo.txt) that contain two columns like this:
# tag value AAA 0.2 AAT 0.3 AAC 0.02 AAG 0.02 ATA 0.3 ATT 0.7 Given another query vector > qr <- c("AAC", "ATT") I would like to find the corresponding value for each query above, yielding: 0.02 0.7 However, I want to avoid slurping whole repo.txt into an object (e.g. hash). Is there any ways to do that? The reason I want to do that because repo.txt is very2 large size (milions of lines, with tag length > 30 bp), and my PC memory is too small to keep it. - Gundala Viswanath Jakarta - Indonesia ______________________________________________ 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.