All the solutions presented work, but, gosh, why not fix the source file in the first place?
One way: Open the text file in Excel or a clone thereof, and tell the importer dialog box to use both tabs and commas as delimiters. Then save the result, which will have your 'third column' nicely split into separate sets of data.
Actually, I would recommend going back to whatever (stupid incompetent) tool produced that file full of inconsistent delimiters and fixed the problem at the source.
Carl ______________________________________________ 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.