Checks length is a particular value or range using
length(x) >= length && length(x) <= upper
Usage
chk_length(x, length = 1L, upper = length, x_name = NULL)
vld_length(x, length = 1L, upper = length)Arguments
- x
The object to check.
- length
A count of the length.
- upper
A count of the max length.
- x_name
A string of the name of object x or NULL.
Value
The chk_ function throws an informative error if the test fails or
returns the original object if successful so it can used in pipes.
The vld_ function returns a flag indicating whether the test was met.
See also
Other chk_misc:
chk_match(),
chk_missing(),
chk_named(),
chk_not_any_na(),
chk_not_empty(),
chk_not_missing(),
chk_sorted(),
chk_unique(),
chk_valid_name()
Examples
# chk_length
chk_length("text")
try(vld_length("text", length = 2))
#> [1] FALSE
# vld_length
vld_length(2:1, 2)
#> [1] TRUE
vld_length(2:1, 1)
#> [1] FALSE