Lab 05

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# Lab 05
## Data wrangling & regression
### 02.13.20

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## Agenda

1. Lab introduction

2. Password caching

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## Lab introduction

- Data: [Airbnb.com](https://www.airbnb.com/) listings in Nashville,
 - The data is from [insideairbnb.com](http://insideairbnb.com/)

- Goals: 
 - **Data wrangling**: cleaning and transforming data so it is in a format that can be used for statistical analysis
 - **Regression**: Fit an interpret a model to predict the total cost to stay at an Airbnb for 3 nights.

- Tips: 
 - Use the links in the lab instructions to see documentation for some of the functions needed for today's lab. 
 - Use [Chapter 5 in *R for Data Science*](https://r4ds.had.co.nz/transform.html) as a resource for the data wrangling functions
 - Use the lecture notes and textbook a reference for the concepts in multiple regression.

---

## Caching your password

You need to cache your password on a per-project basis:

- Go to the **Terminal** within a project 
- Example: Type the following to cache your password for 7 days, i.e. `\(60 * 60 * 24 * 7 = 604800\)` seconds

```bash
git config --global credential.helper 'cache --timeout 604800'
```