Ah Phil Spector is right, nothing is converted. I'm almost too embarrassed to admit it, but actually, it was Excel that tricked me. It displays date fields differently than they are stored in the csv file, and once you press 'save', it saves everything to a different format, completely unasked.
Nevertheless I got some valuable insight in the topic. What I'm trying to do here is make it easier for people to upload files that might contain dates to my webapp at yeroon.net/ggplot2. Currently, dates are imported as factors. I would like to implement something that Henrique described, to automatically convert variables to Date that are obviously dates. -- View this message in context: http://n4.nabble.com/read-table-behavior-for-Dates-tp2013442p2013563.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.