Fragstats 6.0 is now available. Go to Downloads page to find out how you can get a copy. Click here to see what's new.
Welcome to Fragstats
The Spatial Pattern Analysis Program for Categorical Maps.
A powerful yet easy to use application used for over 25 years by thousands of educators, students, and researchers. (click for more)
FRAGSTATS is a spatial pattern analysis program for categorical maps representing the landscape mosaic model of landscape structure.
Note, at this time FRAGSTATS is not suitable for continuous surface maps representing the landscape gradient model of landscape structure, although this is under construction for a future release.
The landscape subject to analysis is user-defined and can represent any spatial phenomenon.
FRAGSTATS simply quantifies the spatial heterogeneity of the landscape as represented in the user-defined categorical map; however, it is incumbent upon the user to establish a sound basis for defining and scaling the landscape in terms of thematic content and spatial resolution (i.e., spatial grain and extent).
We strongly recommend that you read the FRAGSTATS Background section before using this program (see the Help tab and “Online documentation” in the software).
Importantly, the output from FRAGSTATS is meaningful only if the landscape as defined is meaningful relative to the phenomenon under consideration.
Using Fragstats 6 in four easy steps
Select your input data and the metrics that you want to be calculated then hit run.
Go to the results tab and select the run results that you are interested in. Right click on the run to save the results on disk for further processing. You can also delete it if needed.
Right-click on an input grid name in the results tree to open up a visualization window where you can inspect the results, by patch or by class.
Right-click on a calculated metric in the right panel of the inspection window to generate a surface metric where each cell will take on the value of the metric for the patch it belongs to. The resulting surface will be loaded for viewing in a dedicated viewer. (Availabe for the professional and organization level licenses).