Data Manipulation in R

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14/15 Exercise 4

1. Introduction

2. Check the structure of the data

3. Convert factors to characters

4. Convert characters to factors

5. Change column type

6. How to separate columns in two

7. Change a column name

8. Change multiple column names

9. Combine multiple columns into one

10. Duplicate values

11. Summary & Exercise 1

Are there any duplicates in the data set? If so, let's find them!

Check if there are any duplicates in the students dataset and remove them.

Here's a piece of code to help you get started:

students <- students[!duplicated(...), ]

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