SaTScan is a program for detecting clusters over space, time, and space-time. It is available for Windows, Mac OS X, and Linux.
SaTScan 9.4 was recently released and it is better than ever! The data import wizard now allows shapefiles to be read and and a graphing feature has been added to help examine temporal trends. Visit the link for a better look at the
rundown of new features.
|
The Import Wizard now reads shapefiles. |
In previous posts, I've covered the
types of files you will need and how
to aggregate data in preparation for importing it. Since version 9.2, SaTScan has had the ability to export *.kml and *.shp so that the most likely clusters can be viewed in GIS software. (
Aside: Google Earth Pro is now free!
https://www.google.com/work/mapsearth/products/earthpro.html)
Below is an example looking at clusters of low immunization rates in California from the journal Pediatrics. Free full-text:
http://pediatrics.aappublications.org/content/135/2/280.full.pdf+html
|
In SaTScan, using lat/long coordinates, allows users to export to *.kml and *.shp.
Google Earth opens the *.kml automatically when a run is complete. |
A few tutorials are being made,
http://www.satscan.org/tutorials.html and sample data is available. Be sure to read the expertly written user's guide before running:
http://goo.gl/rHg7M6. and the long and varied bibliography of analyses conducted with SaTScan:
http://www.satscan.org/references.html
Update #1 (2/20/15)
Scan statistics can also be implemented in R's Spatial Epi Package and rsatscan.
No comments:
Post a Comment