
is_num_fac()
checks whether a factor has only numeric or
any non-numeric factor levels, while is_num_chr()
checks whether
a character vector has only numeric strings.
is_num_fac(x)is_num_chr(x)
A factor for is_num_fac()
and a character vector for
is_num_chr()
Logical, TRUE
if factor has numeric factor levels only, or
if character vector has numeric strings only, FALSE
otherwise.
# NOT RUN {
# numeric factor levels
f1 <- factor(c(NA, 1, 3, NA, 2, 4))
is_num_fac(f1)
# not completeley numeric factor levels
f2 <- factor(c(NA, "C", 1, 3, "A", NA, 2, 4))
is_num_fac(f2)
# not completeley numeric factor levels
f3 <- factor(c("Justus", "Bob", "Peter"))
is_num_fac(f3)
is_num_chr(c("a", "1"))
is_num_chr(c("2", "1"))
# }
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