Show which column types are using Altrep
vroom_altrep() can be used directly as input to the altrep
argument of vroom().
vroom_altrep(which = NULL)
which |
A character vector of column types to use Altrep for. Can also
take |
Alternatively there is also a family of environment variables to control use of
the Altrep framework. These can then be set in your .Renviron file, e.g.
with usethis::edit_r_environ(). For versions of R where the Altrep
framework is unavailable (R < 3.5.0) they are automatically turned off and
the variables have no effect. The variables can take one of true, false,
TRUE, FALSE, 1, or 0.
VROOM_USE_ALTREP_NUMERICS - If set use Altrep for all numeric types
(default false).
There are also individual variables for each type. Currently only
VROOM_USE_ALTREP_CHR defaults to true.
VROOM_USE_ALTREP_CHR
VROOM_USE_ALTREP_FCT
VROOM_USE_ALTREP_INT
VROOM_USE_ALTREP_BIG_INT
VROOM_USE_ALTREP_DBL
VROOM_USE_ALTREP_NUM
VROOM_USE_ALTREP_LGL
VROOM_USE_ALTREP_DTTM
VROOM_USE_ALTREP_DATE
VROOM_USE_ALTREP_TIME
vroom_altrep()
vroom_altrep(c("chr", "fct", "int"))
vroom_altrep(TRUE)
vroom_altrep(FALSE)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.