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Check if FALSE using
is.logical(x) && length(x) == 1L && !anyNA(x) && !x
chk_false(x, x_name = NULL)vld_false(x)
vld_false(x)
The chk_ function throws an informative error if the test fails or returns the original object if successful so it can used in pipes.
chk_
The vld_ function returns a flag indicating whether the test was met.
vld_
The object to check.
A string of the name of object x or NULL.
vld_false(): Validate FALSE
vld_false()
Other chk_logical: chk_flag(), chk_lgl(), chk_true()
chk_flag()
chk_lgl()
chk_true()
# 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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