How to call the previous month in R?

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#1 by (3 votes)
#2 by (3 votes)

4

I need R to tell me the month before we are, that is, we are in "2018-05" and I need him to give me "2018-04". So far my solution was:

format(Sys.Date()-as.integer(format(Sys.Date(), "%d")),"%Y-%m")

I believe there should be a more "clean" solution.

r date

asked by anonymous 11.06.2018 / 21:23

2 answers

3

With lubridate , you can do this:

library(lubridate)
month(today() - months(1))

11.06.2018 / 22:02

score 3 · Accepted Answer

You can also use mondate :

library(mondate)

mondate(Sys.Date())-1
# mondate: timeunits="months"
# [1] 05/12/2018

And to format only year and month:

format(mondate(Sys.Date())-1, "%Y-%m")
# [1] "2018-05"