How to plot dates

Dan, Thank you for this guidance.
Unfortunately, I do not have the library lubridate, and I do not at this moment know where to go to get this library for an Apple MacBook.

library(lubridate)

Error in library(lubridate) : there is no package called ?lubridate?

Greg Coats
Reston, Virginia USA

On Mar 16, 2021, at 7:49 PM, Daniel Nordlund <djnordlund at gmail.com> wrote:

# create timepart variable - tme
library(lubridate)