[R] month-day-year to Date

Terry Therneau therneau at mayo.edu
Sun Dec 28 20:11:45 CET 2008

 I have a data from with 3 numeric variables, and wish to create a Date object.
The old "date" library had a function mdy.date to do this.  I've chased all of
the See Also sections I can find for the Date class, and didn't find anything

  Yes, I can use as.Date(paste(data$year+1900, data$month, data$day), sep='/'))
but it seems odd pack something together that will immediately be unpacked.

	Terry Therneau

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