The intermediate R course is the logical next stop on your journey in the R programming language. In this R training you will learn about conditional statements, loops and functions to power your own R scripts. Next, you can make your R code more efficient and readable using the apply functions. Finally, the utilities chapter gets you up to speed with regular expressions in the R programming language, data structure manipulations and times and dates. This R tutorial will allow you to learn R and take the next step in advancing your overall knowledge and capabilities while programming in R.
To be TRUE or not be TRUE, that's the question. In this chapter you'll learn about relational operators to see how R objects compare and logical operators to combine logicals. Next, you'll use this knowledge to build conditional statements.
Loops can come in handy on numerous occasions. While loops are like repeated if statements; the for loop is designed to iterate over all elements in a sequence. Learn all about them in this chapter.
Functions are an extremely important concept in almost every programming language; R is not different. After learning what a function is and how you can use one, you'll take full control by writing your own functions.
Whenever you're using a for loop, you might want to revise your code and see whether you can use the lapply function instead. Learn all about this intuitive way of applying a function over a list or a vector, and its variants sapply and vapply.
Mastering R programming is not only about understanding its programming concepts. Also a solid knowledge of a wide range of R functions is useful. This chapter introduces you to a bunch of useful functions for data structure manipulation, regular expressions and working with times and dates.