Check Number
Checks if non-missing numeric scalar using
is.numeric(x) && length(x) == 1L && !anyNA(x)
Pass: 1, 2L, log(10), -Inf
Fail: "a", 1:3, NA_real_
chk_number(x, x_name = NULL) vld_number(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_number: Validate Number
Other chk_scalars:
chk_date_time(),
chk_date(),
chk_scalar(),
chk_string(),
chk_tz(),
chk_whole_number()
# chk_number chk_number(1.1) try(chk_number(TRUE)) # vld_number vld_number(1.1)
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