R for Data Analysis
Learn R for data analysis — installing R and RStudio, then cleaning, transforming, grouping, and querying real datasets.
Built on the publicly available R for Data Analysis by Alex Freberg — watch the original.
Free with any Oreni account. No card required.
Free with any Oreni account. No card required.
What you’ll learn
- Basics of R | Environment, Variables, Data Types
- Installing R and R Studio
- How to Remove Duplicates in an R Dataframe
- Grouping and Aggregating Data in R
- Standardizing and Parsing Dates in R using Lubridate
- Handling Missing Data in R
- Filtering and Ordering Data in R
- Reading and Writing Files in R
- Operators in R
A playlist teaches. This proves you learned it.
Every feature below ladders up to one question: can you actually do the job and pass the interview.
AI-graded mock interviews
Answer real interview questions in writing — AI grades you and hands back a reference answer.
Active recall
Open-ended questions after every lesson, AI-graded, with follow-ups when you're shaky.
Quizzes
Retake any quiz, review your mistakes, and keep your best score.
Hands-on exercises
Checklist tasks with an expected-outcome reveal, so you know the moment you got it right.
Spaced-repetition flashcards
FSRS-scheduled review with a live due-count — it only resurfaces cards right before you'd forget them.
Skill mindmap
See how every concept in the course connects — not a syllabus, a map.
Cheatsheets
Searchable, copyable, downloadable — a reference you keep using after you finish.
Timestamped notes
Pin a note to the exact video moment, jump straight back to it later.
Progress + resume
Every topic tracked — close the tab, come back next week, pick up exactly where you left off.
Inside the course
1 milestones, 9 lessons, ~2 hours of video. Every lesson comes with hands-on tasks and active-recall checks — you practise it, not just watch it.
- Basics of R | Environment, Variables, Data Types
- Installing R and R Studio
- How to Remove Duplicates in an R Dataframe
- Grouping and Aggregating Data in R
- Standardizing and Parsing Dates in R using Lubridate
- Handling Missing Data in R
- Filtering and Ordering Data in R
- Reading and Writing Files in R
- Operators in R
Start learning today
Free with an Oreni account. Create one and pick up where you left off on any device.
Free with any Oreni account. No card required.