Although R gives you a lot of flexibility, including the ability to use default parameter values, detect missing parameter values, specify a variable number of parameters, and define nested functions, ...

From getting subsets of your data to pulling basic stats from your data frame, here's what you need to know.

What does this mean? First of all, R has built-in functions for common statistical tasks (e.g., t -tests, regression, and so on). Second, R works naturally with vectors and matrices, which is handy ...