exercise_02.Rmd

---
title: "Exercise 2"
output: html_notebook
---

## Directions

For the workshop, we've prebuilt a data set that has information about menus in Duke's Brodhead Center from three restaurants.  

1. From the File menu, open a New R Notebook:  `File > New File > R Notebook`
1. Add a code chunk at/around line 20.  (Hint: *Ctrl+Alt+I*)
1. Load the `tidyverse` package.  In that code-chunk, type: `library(tidyverse)` and **run the code chunk**.
1. Now you are ready to make new code chunks and follow the steps in below.


## Exercise: Data Structures & Vector Types

1. Using what we've you've seen in class, if `data/brodheadCenter.csv` is a CSV (comma separated values) file, how would you load the file into a new object called `brodhead`?

2. What is the data structure of the `brodhead`?

3. Take a look at the structure of the `brodhead` object.
    - How many observations (rows) are there?
    - How many variables (columns) are there?
    - How many of the variables are numeric data?
    
## Answers

See the [answers](answers.Rmd) 


## Quiz

Take the [interactive quizes](https://libjohn.shinyapps.io/intro2r_quizzes/)