The first Makeover Monday of 2019 offers us this chart of average attendance by team in the NHL.
What works well?
- Teams are sorted in alphabetical order by city
What could be improved?
- The y-axis for the bars should start at zero. Truncating the axis results in inaccurate comparisons.
- A line chart should not be used across discrete categories. There is no trend here; the pattern of the line is determined by the ordering of the teams.
- Showing the % change on a secondary axis can impart unintentional relationships. For example, the % change markers for Dallas and Phoenix appear above their respective attendance bars; this has no meaning. The position of the change marker relative to the bar is just the result of the axis scales.
- 3D effects should be removed. They add nothing to the chart.
What Marc did:
- Created small multiple charts by team.
- Grouped the teams into divisions and conferences.
- Charted average home attendance per game for each season since 2000.
- Denoted Stanley Cup winning seasons, as these likely correlate with higher attendance.
- Added annotations for Atlanta Thrashers relocation to Winnipeg and Vegas Golden Knights inaugural season.
What Ryan did:
- Calculated the percentage of arena capacity filled for home games (Credit to Justin Davis for his arena capacity calculation). I thought this was a better comparison as arena capacity varies among teams.
- Created small multiple area charts for each team and grouped them by conference.
- Coloured the charts by team colours.
- Labelled the team names inside the area charts
- Added a constant line at 100% capacity. I noticed that some attendance figures go over capacity which may be due to extra tickets sold or participation in the Winter Classic game.