powered by
Checks if is a vector using
length(x) == 1L
chk_scalar(x, x_name = NULL)vld_scalar(x)
vld_scalar(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_scalar(): Validate Scalar
vld_scalar()
Other chk_scalars: chk_date(), chk_date_time(), chk_number(), chk_string(), chk_tz(), chk_whole_number()
chk_date()
chk_date_time()
chk_number()
chk_string()
chk_tz()
chk_whole_number()
# chk_scalar chk_scalar(1) chk_scalar(list(1)) try(chk_scalar(1:2)) # vld_scalar vld_scalar(1)
Run the code above in your browser using DataLab