Check Logical Scalar
Checks if logical scalar using
is.logical(x) && length(x) == 1L
chk_lgl(x, x_name = NULL) vld_lgl(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.
The vld_
function returns a flag indicating whether the test was met.
vld_lgl
: Validate Logical Scalar
# chk_lgl chk_lgl(NA) try(chk_lgl(1)) # vld_lgl vld_lgl(TRUE) vld_lgl(FALSE) vld_lgl(NA) vld_lgl(1) vld_lgl(c(TRUE, TRUE))
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