Thank you very much for the reply. I checked the rows and it was the unbalanced " quote marks in some of the rows that caused the problem. Once I disabled quoting altogether, the problem is solved.
I have one more basic question. I disabled quoting when loading the file to R, and all the columns consisting of characters with or without quotation marks displayed normally. What does quoting actually do in R? -- View this message in context: http://www.nabble.com/rows-missing-after-dataset-loaded-to-R-tp24625882p24630154.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.