pointpats.ellipse

pointpats.ellipse(points)[source]

Calculate parameters of standard deviational ellipse for a point pattern.

Parameters:
pointsarraylike

(n,2), (x,y) coordinates of a series of event points.

Returns:
_float

semi-major axis.

_float

semi-minor axis.

thetafloat

clockwise rotation angle of the ellipse.

Notes

Implements approach from:

https://www.icpsr.umich.edu/CrimeStat/files/CrimeStatChapter.4.pdf