base_classes {S7}

Base classes

Description

These classes represent base types allowing them to be used within S7. There are three categories: base types, unions types, and key S3 classes.

Base types:

• class_logical

• class_integer

• class_double

• class_complex

• class_character

• class_raw

• class_list

• class_expression

• class_function

• class_environment (can only be used for properties)

Union types:

• class_numeric is a union of class_integer and class_double.

• class_atomic is a union of class_logical, class_numeric, class_complex, class_character, and class_raw.

• class_vector is a union of class_atomic, class_list, and class_expression.

Key S3 classes:

• class_data.frame

• class_Date

• class_factor

• class_POSIXct

Usage

class_logical

class_integer

class_double

class_complex

class_character

class_raw

class_list

class_expression

class_function

class_environment

class_numeric

class_atomic

class_vector

class_factor

class_Date

class_POSIXct

class_data.frame

Value

S7 classes wrapping around common base types and S3 classes.

Examples

class_integer
class_numeric
class_factor