# Preface

This instruction manual belongs to the course Introduction to R which is taught at the Institute for Medical Statistics, Computer and Data Sciences at Jena University hospital. Each chapter belongs to one of the five course dates. It is written in a way that should allow you to reproduce the entire course by yourself on your personal computer.

There are a lot of code examples in this instruction manual. You can generally recognize a piece of R code in this document by the grey highlighting. If the code returns a result, the result is displayed directly below the code:

1+1
[1] 2

We strongly encourage you to try out all the example code yourself while working through the chapters!

If you run into problems please check the Troubleshooting paragraph at the end of the first two chapters that lists the most common problems and corresponding solutions people encounter when learning to use R.