R Object: S3 vs S4 (Assignment 7)
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Greetings Professor, In this assignment #7, I used the Object Oriented Systems S3 and S4 for completing this assignment. I created a new dataset by taking your example as an reference. And also answered the questions for the datasets S3 and S4. 1.S3 implements a generic function OO and it is different from many other programming languages like Java, C++, C, these implements message-passing using OO. In the other programming languages, by calling methods to the objects and these objects determines which has to be called. This process is called "method call". But S3 is totally different by calling the methods via a special type of function called a 'generic function' and this decides which function has be to called. S4 and S3 works similarly by few differences. S4 have special functions to call or to define the generic functions and methods. And also it can pick methods based on number of arguments. 2. To determine the base type(like integer or list) of an object ...