chk_s3_class: Check Type

Description Usage Arguments Value Functions See Also Examples

View source: R/chk-s3-class.R

Description

Checks inherits from S3 class using

!isS4(x) && inherits(x, class)

Usage

1
2
3

Arguments

x

The object to check.

class

A string specifying the class.

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.

Functions

See Also

Other chk_is: chk_array(), chk_atomic(), chk_data(), chk_function(), chk_is(), chk_matrix(), chk_numeric(), chk_s4_class(), chk_vector(), chk_whole_numeric()

Examples

1
2
3
4
5
6
# chk_s3_class
chk_s3_class(1, "numeric")
try(chk_s3_class(getClass("MethodDefinition"), "classRepresentation"))
# vld_s3_class
vld_s3_class(numeric(0), "numeric")
vld_s3_class(getClass("MethodDefinition"), "classRepresentation")

chk documentation built on July 25, 2020, 9:07 a.m.