Visualize · Week 12
Visualization: Relationships + Time
Start Lecture 8 at the title slide. Add summary curves and group comparisons to scatterplots, explore log transformations, and use line charts to describe change over time.
Nov 9–13Lecture 8 · Classworks 14–16
Focus
- Summary curves and grouped relationships
- Log transformations and axis spacing
- Time trends and visual evidence
Prepare
- Open Lecture 8 at the title slide
- Review how to read a scatterplot
- Open Classworks 14–16
Practice
- Compare scatterplots across groups
- Explain a log-transformed chart
- Build a line chart and state a finding
Learning targets
- Add a smooth curve or straight summary line to a scatterplot and explain what it summarizes.
- Use color, shape, and facets to compare relationships across groups.
- Explain how a log transformation changes the spacing of values and when it is useful.
- Build a line chart with correctly ordered dates and separate groups.
- Communicate a chart’s finding and limitations without treating association as proof of causation.
Core pattern
Ask a question → choose variables → map them to the chart → add a useful summary → explain the evidence and its limits. Check the units, scales, and grouping before interpreting a pattern.
Lecture slides
TipLecture slide shortcuts
Click inside the slide preview, then use:
- the visible ←/→ controls to page through the slides;
- your mouse wheel or trackpad to keep scrolling the weekly page;
- M to open the menu;
- F to enter fullscreen;
- E to enter or exit PDF export mode;
- Ctrl + Shift + F to search within the slides;
- Esc to exit the menu or fullscreen; and
- T to switch between dark and light mode.