lsm_l_pr: PR (landscape level)

Description Usage Arguments Details Value References Examples

Description

Patch richness (Diversity metric)

Usage

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lsm_l_pr(landscape)

## S3 method for class 'RasterLayer'
lsm_l_pr(landscape)

## S3 method for class 'RasterStack'
lsm_l_pr(landscape)

## S3 method for class 'RasterBrick'
lsm_l_pr(landscape)

## S3 method for class 'stars'
lsm_l_pr(landscape)

## S3 method for class 'list'
lsm_l_pr(landscape)

Arguments

landscape

Raster* Layer, Stack, Brick or a list of rasterLayers.

Details

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.

Units

None

Range

PR >= 1

Behaviour

Equals PR = 1 when only one patch is present and increases, without limit, as the number of classes increases

Value

tibble

References

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

Examples

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r-spatialecology/landscapemetrics documentation built on May 20, 2019, noon