R-Programming Succinctly by Unknown

Author:Unknown
Language: eng
Format: azw3
Published: 2017-05-31T21:40:31+00:00

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3.3 OOP using S4

In 2001, the R language introduced an OOP model called S4 that is quite a bit more

sophisticated than the earlier S3 model. However, for many programming scenarios, the

advanced features available in S4 (such as a form of inheritance and checking for input validity)

are optional and not needed.

Code Listing 9: S4 Model OOP

# persons.R

# R 3.2.4

# S4 OOP

Person = setClass(

“Person”,

slots = list(

lastName = “character”,

age = “integer”,

payRate = “numeric”

),

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