check_named | R Documentation |
Checks whether an object is named.
check_named(
x,
nchar = c(0L, chk_max_int()),
pattern = ".*",
regex = pattern,
unique = FALSE,
x_name = substitute(x),
error = TRUE
)
x |
The object to check. |
nchar |
A count or count range of the number of characters. |
pattern |
A string of the regular expression that must match all names. |
regex |
A string of the regular expression that must match all names. |
unique |
A flag indicating whether the names must be unique. |
x_name |
A string of the name of the object x. |
error |
A flag indicating whether to throw an informative error or immediately generate an informative message if the check fails. |
An invisible copy of x (if it doesn't throw an error).
check_unnamed
, check_names
and check_missing_names
check_named(2, error = FALSE)
x <- 1
names(x) <- "y"
check_named(x, error = FALSE)
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