The goal of actuary package is to support the actuarial modelling.
You can install actuaryr package with:
library(actuaryr)Retrieve the date in reference to the base date.
Build a function using dref_ + first letters of the
reference day.
| of month | of quarter | of year | |
|---|---|---|---|
| first day | dref_fdom() | dref_fdoq() | dref_fdoy() | 
| first working day | dref_fwdom() | dref_fwdoq() | dref_fwdoy() | 
| last day | dref_ldom() | dref_ldoq() | dref_ldoy() | 
| last working day | dref_lwdom() | dref_lwdoq() | dref_lwdoy() | 
Examples:
dref_fdom("2019-09-21")
#> [1] "2019-09-01"
dref_fwdoq("2019-09-21")
#> [1] "2019-07-01"
dref_ldoy("2019-09-21")
#> [1] "2019-12-31"
dref_lwdom("2019-09-21")
#> [1] "2019-09-30"Compare two tables with compare().
x <- data.frame(
  v1 = 1:3,
  v2 = 4:6
)
y <- data.frame(
  v1 = 1:3,
  v2 = 7:9
)
compare(x, y)