predicate-utils: Utility Predicates
In arkhe: Tools for Cleaning Rectangular Data

predicate-utils

R Documentation

Utility Predicates

is_empty() checks is an object is empty (any zero-length dimensions).
has_length() checks how long is an object.
has_names() checks if an object is named.
has_duplicates() checks if an object has duplicated elements.
has_missing() and has_infinite() check if an object contains missing or infinite values.

has_length(x, n = NULL)

has_names(x, names = NULL)

has_duplicates(x)

has_missing(x)

has_infinite(x)

is_empty(x)

is_unique(x, na.rm = FALSE)

`x`	A `vector` to be tested.
`n`	A length-one `numeric` vector specifying the length to test `x` with. If `NULL`, returns `TRUE` if `x` has length greater than zero, and `FALSE` otherwise.
`names`	A `character` vector specifying the names to test `x` with. If `NULL`, returns `TRUE` if `x` has names, and `FALSE` otherwise.
`na.rm`	A `logical` scalar: should missing values (including `NaN`) be omitted?

A logical scalar.