I am trying to get back to date prior to some month in the past.
Following is example code where i go 9 months back and get the expected result.
lubridate::ymd(20191231) + months(-9)
"2019-03-31"
Following is example code where i want to go 6 months back but get unexpected result.
lubridate::ymd(20191231) + months(-6)
[1] NA
Please help how to fix this?
