Blurring
Plugin to blur point data, such as health personal data, and get some statistics about this blurring.
Menu
Blurring
1 : Creating a buffer (radius r)
2 : Random selection of a point in each buffer
3 : Creating a buffer around the new point with the same radius. The initial point is at a maximal distance 2r of the centroid of the buffer.
4 : Deleting the random point and the first buffer
The envelope layer will force the algorithm to have an intersection between the centroid and this layer. This is like a mask.
Statistics
The plugin asks two layers. Both are polygons :
- The blurred layer
- A stats layer
The stats layer could be buildings for instance.
With these two layers, the plugin will count the number of intersections between them and produces some stats. This is usefull if you want to rate your blurring.
Incidence
The plugin asks two layers :
- Point layer
- Polygon layer (like administrative boundary)
This algorithm will count the number of points inside each polygons and run a formula to get the incidence.
You can have some statistics about the incidence.
This is usefull to make an incidence map about a disease.