Week 4 — Joins, Import & Exam
June 8 - 12, 2026
Important
Exam is Thursday, June 11.
We will cover the last major data-handling tools— joining multiple tables and importing data from various sources. Thursday is our in-class midterm exam, and Friday we will cover web scraping.
Daily plan
| Date | Topic | Slides & Notes | Code & Data |
|---|---|---|---|
| Mon Jun 8 | Joining tables | Slides · Page · PDF | day15-activity.R |
| Tue Jun 9 | Importing data | Slides · Page · PDF | day16-activity.R |
| Wed Jun 10 | Exam review | Slides · Page · PDF | day17-activity.R |
| Thu Jun 11 | EXAM | — | — |
| Fri Jun 12 | Web scraping | Slides · Page · PDF | day19-activity.R |
Readings due this week
- Before Mon: Data Computing Ch 11 (§11.1–11.3): joining two data frames
- Before Tue: Data Computing Ch 16 (§16.1–16.2, 16.4–16.5): data formats, CSV, cleaning, factors
- Before Fri: Data Computing Ch 16 (§16.3): HTML tables and web scraping
Assignments due this week
- HW 4: due Mon Jun 15, 11:59 p.m.
- Exam (in-class): Thursday Jun 11
- Project Checkpoint 1: due Sunday Jun 14, 11:59 p.m.