Data Manipulation in R

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14/15 Exercise 3

1. Introduction

2. How are dates stored in a data frame?

3. Change date formats – 1

4. Change date formats – 2

5. Extract date data

6. Get a component of a date

7. Getting weekdays from a date

8. Getting weekdays' labels

9. Summarize weekday departures

10. Intervals

11. Calculate differences in time and date data

And for the last exercise – a quick one.

Show the table with weekdays (their abbreviated form) and the number of reservations starting on that day.

You'll need the wday() function with options label and abbr set to TRUE. You'll also need the table() function.

table(wday(..., label=TRUE, abbr=TRUE))

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