Hi, Can someone help for a R question?
I have a data set like: Name CheckInDate Temp John 1/3/2014 97 Mary 1/3/2014 98.1 Sam 1/4/2014 97.5 John 1/4/2014 99 I'd like to return a dataset that for each Name, get the row that is the latest CheckInDate for that person. For the example above it would be Name CheckInDate Temp John 1/4/2014 99 Mary 1/3/2014 98.1 Sam 1/4/2014 97.5 Thank you for your help! Richard [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.