Glossary · Phase 0 · Tools
Log scale
An axis where each step is ten times the last, so values from tiny to huge all fit and equal steps mean equal percentage growth.
Try it now
The same 18 months of trail-shoe orders. Switch to bars and turn off the zero baseline: small differences suddenly look huge. Then hide the last month and the false collapse disappears.
Learn it properly
Charts with Matplotlib · Line, bar, scatter, histogram and box plots, labeled and honest. About 40 minutes.
Other terms from the same lesson
- box plot: A chart of a group's spread: a box around the middle half of the values, a line at the median, and dots for unusual values.
- histogram: A chart that sorts values into ranges and shows how many fall in each, so you can see which values are common.
- small multiples: A grid of small, simple charts, one per group, drawn on the same scale so they're easy to compare.
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