Editing Directional statistics (section)

=== Central tendency ===
{{Further|Circular mean}}

The most common measure of location is the circular mean. The population circular mean is simply the first moment of the distribution while the sample mean is the first moment of the sample. The sample mean will serve as an unbiased estimator of the population mean.

When data is concentrated, the [[median]] and [[Mode (statistics)|mode]] may be defined by analogy to the linear case, but for more dispersed or multi-modal data, these concepts are not useful.