I have a column in a data frame that has a class of "Date" and a mode of "numeric". When I:
max(df$Date) My output stays in Date format, i.e. "2006-01-03". However, when I run the following statment: tapply(df$Date, df$SomeFactor, max) my output looks like this: 9129 9493 9861 10226 10591 10956 11320 11687 12052 12417 The returned object is of mode "numeric" and class "array". Each array element is of mode "numeric" and class "numeric". I believe that this is the integer representation of my date. I can't seem to convert it back to a date. How do I get these to be intrepreted as a date instead of a number? Thanks, ~Dave R. ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
