Unit 3 Lab Code

Unit 3 Lab Ojectives and Functions:

The documentation below lists the new functions that will appear in each lab. The lab itself will explain how to use each function. For more examples, refer to the RStudio Lab Codes and Functions file.

Lab3A

Objective: Students will investigate the question: Does the stimulus your class chose change people’s perception of time? and analyze their experimental data using plots, numerical summaries, and shuffling.
```
No new functions
```

Lab3B

Objective: Students will understand the difference between experiments and observational studies and investigate the question: What is the effect of childhood smoking on lung health?
```
No new functions
```

Lab3C

Objective: Students will understand the difference between population data and sample data and learn how sampling methods affect how representative a sample is of a population.
```
slice(x, from:to)
```

Lab3D

Objective: Students will learn how to calculate margins of error using the bootstrap and investigate the question: What is the mean age of people older than 15 living in the United States?
```
No new functions
```

Lab3E

Objective: Students will learn how to scrape data by gathering information from the web and cleaning it.
```
readHTMLTable(url, which)
length(x)
```

Lab3F

Objective: Students will learn how to to create an interactive map of the mountains data scraped in lab 3e.

load(file)
leaflet()
addTiles()
addMarkers(map, lng, lat, popup)
colorize()
addCircleMarkers()
addLegend(x, colors, labels)