Checks if the first occurrence of each shared element
in x is equivalent to the first occurrence of each shared element in values using
vld_equivalent(unique(x[x %in% values]), values[values %in% x]).
Arguments
- x
The object to check.
- values
A vector of the permitted values.
- x_name
A string of the name of object x or NULL.
Value
The chk_ function throws an informative error if the test fails.
The vld_ function returns a flag indicating whether the test was met.
See also
Other chk_set:
chk_join(),
chk_not_subset(),
chk_superset(),
vld_not_subset(),
vld_orderset()
Examples
# chk_orderset
chk_orderset(1:2, 1:2)
try(chk_orderset(2:1, 1:2))
#> Error in eval(expr, envir, enclos) :
#> `2:1` must have (the first occurence of) each of the following elements in the following order: 1, 2.