chk_false | R Documentation |
Check if FALSE using
is.logical(x) && length(x) == 1L && !anyNA(x) && !x
chk_false(x, x_name = NULL)
vld_false(x)
x |
The object to check. |
x_name |
A string of the name of object x or NULL. |
The chk_
function throws an informative error if the test fails or
returns the original object if successful so it can used in pipes.
The vld_
function returns a flag indicating whether the test was met.
vld_false()
: Validate FALSE
is.logical()
length()
For more details about the use of this function,
please read the article
vignette("chk-families")
.
Other logical_checkers:
chk_flag()
,
chk_lgl()
,
chk_logical()
,
chk_true()
Other scalar_checkers:
chk_count()
,
chk_date()
,
chk_date_time()
,
chk_flag()
,
chk_lgl()
,
chk_scalar()
,
chk_string()
,
chk_true()
,
chk_tz()
# chk_false
chk_false(FALSE)
try(chk_false(0))
# vld_false
vld_false(TRUE)
vld_false(FALSE)
vld_false(NA)
vld_false(0)
vld_false(c(FALSE, FALSE))
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