Vectors in R - Everything is an object

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R is a functional, object-oriented language: everything's an object, and functions rule, as you already know. Because functions rule, there are usually many different ways to achieve the same result. They often differ in terms of performance, ease of use, and clarity. Performance becomes important when you work with truly large data sets, otherwise not so much. Ease of use to some extent determines the fun you do or don't have when using the language. Clarity is essential when communicating your methods (including your code) and your results to others. This is not a nice to have. Views of different packages (like the Tidyverse) differ massively regarding all of these.

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