R Programming By Example

Understanding the fundamentals of high-quality code

Code that is modular, flexible, and whose dependencies are well-managed, is said to be highly-cohesive and loosely-coupled. These terms are mostly used in object-oriented environments (more about these in Chapter 8, Object-Oriented System to Track Cryptocurrencies), but apply generally to any system. Highly-cohesive means that things that are supposed to be together, are. Loosely-coupled means that things that are not supposed to be together, are not. The following image shows these characteristics, where each of the circles can be a function or an object in general. These are the basics of dependency management. Many books focused on these topics have been, and continue to be, published. ...