# R: An Introduction

## Course Description

R is a free, open-source, statistical programming language and it is possibly the single most important tool in data science. In this non-technical overview, learn what makes R special and how it can be used to make data science easy, efficient, and insightful.

## Course Information

- Introductory level
- 20 streaming video tutorials
- 2 hours 11 minutes of instruction

*Note.* To navigate the videos, click on the menu icon (☰) in the top left of the video.

## Table of Contents

### INTRODUCTION

- Welcome {2:18}

### SETTING UP

- Installing R {4:56}
- RStudio {4:53}
- Packages {7:24}

### BASIC GRAPHICS

- plot() {8:34}
- Bar charts {4:21}
- Histograms {7:34}
- Scatterplots {4:55}
- Overlaying plots {7:51}

### BASIC STATISTICS

- summary() {3:19}
- describe() {4:29}
- Selecting cases {5:56}

### ACCESSING DATA

- Data formats {15:25}
- Factors {6:55}
- Entering data {5:45}
- Importing data {8:11}

### ANALYZING DATA

- Hierarchical clustering {7:06}
- Principal components {9:41}
- Regression {9:20}

### CONCLUSION

- Next steps {2:04}