Checks if logical using
is.logical(x)
Value
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.
See also
Other chk_typeof:
chk_character()
,
chk_character_or_factor()
,
chk_count()
,
chk_double()
,
chk_environment()
,
chk_factor()
,
chk_integer()
,
chk_list()
Examples
# chk_logical
chk_logical(TRUE)
try(chk_logical(1))
#> Error in eval(expr, envir) : `1` must be logical.
# vld_logical
vld_logical(TRUE)
#> [1] TRUE
vld_logical(matrix(TRUE))
#> [1] TRUE
vld_logical(logical(0))
#> [1] TRUE
vld_logical(NA)
#> [1] TRUE
vld_logical(1)
#> [1] FALSE
vld_logical("TRUE")
#> [1] FALSE