Coefficient_of_variation is an analysis export variable available in exported integration analyses when the School Detection module is licensed.

It reports the coefficient of variation of the Sv sample values in a school represented by a region on an echogram (%).

Coefficient of variation is a statistic that is used to measure the dispersion of the distribution for a set of data. It is the standard deviation divided by the mean, expressed as a percentage. This provides a method of comparing the dispersion of Sv data in schools with very different mean Sv values for example.

This variable is exported only if it is selected on the Export page of the EV File Properties dialog box.

See also

About analysis
About analysis variables

School Detection module algorithms

About Horizontal_roughness_coefficient

About Vertical_roughness_coefficient