Displaying 1 result from an estimated 1 matches for "b93647a9".
2008 Dec 23
3
Using transform to add a date column to a dataframe
I would like to add a column to the airquality dataset that contains the date
1950-01-01 in each row. This method does not appear to work:
> attach(airquality)
> data1 <- transform(airquality,Date=as.Date("1950-01-01"))
Error in data.frame(list(Ozone = c(41L, 36L, 12L, 18L, NA, 28L, 23L, 19L, :
arguments imply differing number of rows: 153, 1
I can't decipher what