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Course

Intermediate R

Beginner

4.8+

Updated 03/2025

Continue your journey to becoming an R ninja by learning about conditional statements, loops, and vector functions.

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RProgramming6 hours14 videos81 Exercises6,950 XP631,948Statement of Accomplishment

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Course Description

Intermediate R is the next stop on your journey in mastering the R programming language. In this R training, you will learn about conditional statements, loops, and functions to power your own R scripts. Next, 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 R, data structure manipulations, and times and dates. This course will allow you to take the next step in advancing your overall knowledge and capabilities while programming in R.

Prerequisites

Introduction to R

1

Conditionals and Control Flow

Relational Operators

Greater and less than

Compare vectors

Compare matrices

Logical Operators

& and | (2)

Reverse the result: !

Blend it all together

Conditional Statements

The if statement

Add an else

Customize further: else if

Else if 2.0

Take control!

2

Loops

Write a while loop

Throw in more conditionals

Stop the while loop: break

Build a while loop from scratch

Loop over a vector

Loop over a list

Loop over a matrix

Mix it up with control flow

Next, you break it

Build a for loop from scratch

3

Functions

Introduction to Functions

Function documentation

Use a function

Use a function (2)

Use a function (3)

Functions inside functions

Required, or optional?

Writing Functions

Write your own function

Write your own function (2)

Write your own function (3)

Function scoping

R passes arguments by value

R you functional?

R you functional? (2)

Load an R Package

Different ways to load a package

4

The apply family

Use lapply with a built-in R function

Use lapply with your own function

lapply and anonymous functions

Use lapply with additional arguments

Apply functions that return NULL

How to use sapply

sapply with your own function

sapply with function returning vector

sapply can't simplify, now what?

sapply with functions that return NULL

Reverse engineering sapply

Use vapply (2)

From sapply to vapply

5

Utilities

Useful Functions

Mathematical utilities

Find the error

Data Utilities

Find the error (2)

Beat Gauss using R

Regular Expressions

grepl & grep

grepl & grep (2)

sub & gsub (2)

Times & Dates

Right here, right now

Create and format dates

Create and format times

Calculations with Dates

Calculations with Times

Time is of the essence

Intermediate R

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Criselda

about 3 hours

Alaynna

about 20 hours

mark

2 days

Mikołaj

5 days

Olalekan

4 days

Very good. I love it

Alessandro Pietro

5 days

I liked it

Criselda

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