transbigdata.ellipse_params
- transbigdata.ellipse_params(data, col=['lon', 'lat'], confidence=95, epsg=None)
confidence ellipse parameter estimation for point data
- 参数:
data (DataFrame) – point data
confidence (number) – confidence level: 99,95 or 90
epsg (number) – If given, the original coordinates are transformed from WGS84 to the given EPSG coordinate system for confidence ellipse parameter estimation
col (List) – Column names, [lon,lat]
- 返回:
params – Centroid ellipse parameters[pos,width,height,theta,area,oblateness] Respectively [Center point coordinates, minor axis, major axis, angle, area, oblateness]
- 返回类型:
List