August 24, 2020

Data Visualization

Today we will get started thinking about Data Visualization. This is a good place to start to think about Data Wrangling.

Putting data into a usable form will be useful for making graphics from data.

A taxonomy for data graphics.

"… you must learn to taste before you can cook well."

  • Visual cues
  • Coordinate systems
  • Scale
  • Context

Visual cues

  • Position
  • Length
  • Angle
  • Direction
  • Shape
  • Area
  • Volume
  • Shade
  • Color

Coordinate systems

  • Cartesian
  • Polar
  • Geographic

Scale

  • Numeric
  • Categorical
  • Time

Context

  • Meaning

Small multiples and layers

  • small multiples
  • layers
  • animation

Stat. 651

In Stat. 651 we will expand on these ideas and discuss ggplot2.