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