Patch richness (Diversity metric)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Raster* Layer, Stack, Brick or a list of rasterLayers.
PR = m
where m is the number of classes
PR is a 'Diversity metric'. It is one of the simplest diversity and composition measures. However, because of its absolute nature, it is not comparable among landscapes with different total areas.
PR >= 1
Equals PR = 1 when only one patch is present and increases, without limit, as the number of classes increases
McGarigal, K., SA Cushman, and E Ene. 2012. FRAGSTATS v4: Spatial Pattern Analysis Program for Categorical and Continuous Maps. Computer software program produced by the authors at the University of Massachusetts, Amherst. Available at the following web site: http://www.umass.edu/landeco/research/fragstats/fragstats.html
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.