TODAY’S DATA LENS

Some lines should use stairs.

Square Today’s Data Lens card comparing the same illustrative percentage series drawn as a sloped line and as a stepped line; the stepped line holds at 2%, jumps to 4%, then drops to 3%.

Observation

The illustrative value changes from 2% to 4%, then to 3%, and stays fixed between changes. A sloped line implies gradual movement between those points. A stepped line shows the value holding until the change happens.

Flat. Jump. Flat. That was the story.