Describe › Standalone plots

Polar plot

A polar plot draws points on angle and radius axes, for circular data such as compass bearings, hour of day or season of year.

What is Polar plot?

Circular data has wrap-around: 0° and 360° are the same direction. Plotting on polar axes makes this natural — points near the 0/360 boundary are visually adjacent rather than at opposite ends of a linear axis.

When should I use Polar plot?

  • Wind direction × wind speed.
  • Diurnal patterns (hour of day on the angle, value on the radius).
  • Seasonality (month on the angle).
  • Any directional data.

What data does it need?

Angle column (degrees or radians) + radius column.

What does it report?

Polar scatter.

How do I interpret the result?

Visual clusters at specific angles ⇒ preferred direction; circular uniformity ⇒ no directional preference. For formal testing, use Rayleigh's z test (not implemented here).

See also