bare-type-predicates: Bare type predicates

In hadley/rlang: Functions for Base Types and Core R and 'Tidyverse' Features

Bare type predicates

Description

These predicates check for a given type but only return TRUE for bare R objects. Bare objects have no class attributes. For example, a data frame is a list, but not a bare list.

Usage

is_bare_list(x, n = NULL)

is_bare_atomic(x, n = NULL)

is_bare_vector(x, n = NULL)

is_bare_double(x, n = NULL)

is_bare_complex(x, n = NULL)

is_bare_integer(x, n = NULL)

is_bare_numeric(x, n = NULL)

is_bare_character(x, n = NULL)

is_bare_logical(x, n = NULL)

is_bare_raw(x, n = NULL)

is_bare_string(x, n = NULL)

is_bare_bytes(x, n = NULL)

Arguments

x	Object to be tested.
n	Expected length of a vector.

Details

• The predicates for vectors include the n argument for pattern-matching on the vector length.

• Like is_atomic() and unlike base R is.atomic() for R < 4.4.0, is_bare_atomic() does not return TRUE for NULL. Starting in R 4.4.0, is.atomic(NULL) returns FALSE.

• Unlike base R is.numeric(), is_bare_double() only returns TRUE for floating point numbers.

See Also

type-predicates, scalar-type-predicates

hadley/rlang documentation built on Dec. 17, 2024, 3:26 a.m.