is_s4

is_S4

is_ref_class_generator

is_ref_class_object

assert_is_s4

assert_is_S4

assert_is_ref_class_generator

assert_is_ref_class_object

Lots of predicates (is_* functions) to check the state of your
variables, and assertions (assert_* functions) to throw errors if they
aren't in the right form.

Richard Cotton

assertive

Readable Check Functions to Ensure Code Integrity

is_s4 function

Is the input an S4 object? — is_s4

Is the input an S4 object?

is_s4: Is the input an S4 object?

Description

Arguments