Upload a plugin


Plugin tags

3d accessibility accuracy accuracy assessment address agriculture analysis android animation api append archaeology area asset atlas attribute attribute edit attribute table attributes azimuth basemap batch bing biodiversity borehole bounding box brasileiro browser buffer cad cadastre calculator canvas catalog catastro circle classification click clip clipboard cloud cluster composer configuration conversion convert converter coordinate copy crs csv d3 danmark dansk data database datasource delimitation dem denmark densify development digitising digitize digitizing diretoria distance download download service downloader drainage draw dsg dsm dtm dxf ecology edit editing elevation ellipse epanet españa excel export expression extraction exército feature field fields filter find flood flow forest france generalization geocoder geocoding geodesic geográfico geojson geology geometry geopackage geopaparazzi georeference gis gml google gps gpx graph grid grids groundwater histogram home range html hydraulic hydraulic modelling hydraulics hydrology ibama images import index inp inspection inspire interlis interpolation intersection javascript join kmz labeling land land cover landsat landscape layer layer tree layers leaflet legend lidar line linear referencing lines load loader location locator manholes map maps marxan mask mesh metadata model modelling mongo mongodb multiple nederland netcdf network network analysis nominatim ogc open data openlayers openstreetmap ordnance survey orientation osm paste pca pdf pdok photos pie pipes plugin poi point point cloud pointcloud pointclouds points polygon polygons polyline postgis postgresql principal components analysis print printing processing productivity profile project projection properties python qgis query raster rectangle remote sensing report river road routing sample sar satellite scale scripts search select selection sentinel server service services serviço shape shapefile shortest path sld snap spain spatial spatial join spatialite split sql sqlite statistics stats stream street street view streetview style survey svg table terrain tiles time time series tms toc tool tools topography topology transformation translate transport trigger uav update urban morphology utm vector vector layer view viewer visibility vn2000 water wcs web web services webmap webmaps webservice webservices wfs wkt wms wps zoom

QGIS Python Plugins Repository

Standard Deviational Ellipse Plugin icon

(10) votes 

Create a standard deviational ellipse for a set of points

A standard deviational ellipse is produced according to two methods, with variations. The default method is the on presented by Robert Yuill (1971). This method does not correct for degrees of freedom. The Yuill method does not give a radius equal to the standard distance deviation for a random point distribution (to achieve this, the SDs should be multiplied by sqrt(2), as explained in the CrimeStat documentation). The plugin also offers the CrimeStat / aspace method, where there are corrections for degrees of freedom and with sqrt(2). A polygon vector layer with the standard deviational ellipse is produced, containing the attributes: meanx, meany, majorsd, minorsd, majorangle, directoind and eccentrici as explained in the documentation. The majorangle is counter-clockwise relative to the first axis. An attribute for weighting can be selected. There are no external library dependencies.

Version Experimental Minimum QGIS version Downloads Uploaded by Date
3.0.4 no 2.99.0 897 havatv Oct. 17, 2018, 2:22 a.m.
3.0.3 no 2.99.0 288 havatv Sept. 24, 2018, 1:15 a.m.
3.0.2 no 2.99.0 395 havatv Aug. 22, 2018, 6:46 a.m.
3.0.1 no 2.99.0 179 havatv Aug. 17, 2018, 3:35 a.m.
3.0.0 no 2.99.0 921 havatv April 6, 2018, 4:03 a.m.
1.2.3 no 2.0.0 556 havatv Sept. 24, 2018, 1:15 a.m.
1.2.2 no 2.0.0 204 havatv Aug. 17, 2018, 3:36 a.m.
1.2.1 no 2.0.0 2697 havatv Jan. 4, 2017, 9:21 a.m.
1.2 no 2.0.0 1377 havatv June 2, 2016, 7:36 a.m.
1.1 no 2.0.0 411 havatv May 31, 2016, 11:07 a.m.
1.0 no 2.0.0 547 havatv May 21, 2016, 5:53 p.m.