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<img src="grass_logo.png" alt="GRASS logo"><hr align=center size=6 noshade>
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<h2>NAME</h2>
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<em><b>r.li</b></em> - Landscape structure analysis package overview.
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<h2>KEYWORDS</h2>
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-raster, landscape structure analysis, landscape metrics, landscape pattern, landscape analysis
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+
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+raster, landscape structure analysis, overview, landscape metrics, landscape pattern, landscape analysis
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<h2>DESCRIPTION</h2>
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-The <em>r.li</em> suite is a toolset for multiscale analysis of landscape
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-structure. It aims at replacing the <em>r.le</em> suite of modules
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-through a client-server, multiprocess implementation. External software
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-for quantitative measures of landscape structure is for example FRAGSTATS
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-(McGarigal and Marks 1995).
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+The <em>r.li</em> suite is a toolset for multiscale analysis of landscape structure.
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+It aims at replacing the <em>r.le</em> suite of modules through a client-server,
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+multiprocess implementation. External software for quantitative measures of landscape
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+structure is for example FRAGSTATS (McGarigal and Marks 1995).
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<p>
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-The <em>r.li</em> suite offers a set of patch and diversity indices. It
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-supports analysis of landscapes composed of a mosaic of patches, but,
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-more generally, the modules work with any two-dimensional raster map
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-whose cell values are integer (e.g., 1, 2) or floating point (e.g., 1.1,
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-3.2) values. The <em>r.li.setup</em> module has options for controlling
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-the shape, size, number, and distribution of sampling areas used to
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-collect information about the landscape structure. Sampling area shapes
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-can be the entire map or a moving window of square, rectangular or with
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-circular shape. The size of sampling areas can be changed, so that the
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-landscape can be analyzed at a variety of spatial scales simultaneously.
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-Sampling areas may be distributed across the landscape in a random,
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-systematic, or stratified-random manner, or as a moving window.
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+The <em>r.li</em> suite offers a set of patch and diversity indices.
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+It supports analysis of landscapes composed of a mosaic of
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+patches, but, more generally, the modules work with any two-dimensional
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+raster map whose cell values are integer (e.g., 1, 2) or floating point
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+(e.g., 1.1, 3.2) values. The <em>r.li.setup</em> module has options for
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+controlling the shape, size, number, and distribution of sampling
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+areas used to collect information about the landscape structure.
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+Sampling area shapes can be the entire map or a moving
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+window of square, rectangular or with circular shape. The size of
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+sampling areas can be changed, so that the landscape can be analyzed
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+at a variety of spatial scales simultaneously. Sampling areas may be
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+distributed across the landscape in a random, systematic, or
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+stratified-random manner, or as a moving window.
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<p>
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The <em>r.li</em> modules can calculate a number of measures that produce
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-single values as output (e.g. mean patch size in the sampling area), as
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-well as measures that produce a distribution of values as output (e.g.
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-frequency distribution of patch sizes in the sampling area). The results
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-are stored as raster maps.
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+single values as output (e.g. mean patch size in the sampling area),
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+as well as measures that produce a distribution of values as output
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+(e.g. frequency distribution of patch sizes in the sampling area). The
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+results are stored as raster maps.
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<p>
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-The general procedure to calculate an index from a raster map is
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-two-fold:
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+The general procedure to calculate an index from a raster map is two-fold:
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<ol>
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-<li>run <em>r.li.setup</em>: create a configuration file selecting the
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- parts of raster to analyze.
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+<li>run <em>r.li.setup</em>: create a configuration file selecting the parts of
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+ raster to analyze.
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-<li>run <em>r.li.'index'</em> (e.g., <em>r.li.patchdensity</em>) for
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- calculate the selected index using on the areas selected on
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- configuration file.
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+<li>run <em>r.li.'index'</em> (e.g., <em>r.li.patchdensity</em>) for calculate the selected
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+ index using on the areas selected on configuration file.
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</ol>
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+<h2>NOTE</h2>
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-<h2>NOTES</h2>
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-
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-Also the <em>r.li.daemon</em> has a main function and it can be run, but
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-it is only a template for development of new indices.
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+Also the <em>r.li.daemon</em> has a main function and it can be run, but it is only a
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+template for development of new indices.
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<!-- mhh ??: -->
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-The function itself has no meaning, it can only be used for debugging.
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-
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+The function itself has no meaning, it can be used only for debug.
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<h2>EXAMPLE</h2>
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@@ -81,10 +76,10 @@ Spearfish region, using a 5x5 moving window, follow this procedure:
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r.li.setup
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</pre></div>
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<li> The main <em>r.li.setup</em> window is displayed, click on "New"
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- <li> Now it is displayed the new configuration window, enter the
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- configuration file name (e.g., "my_conf", do not use absolute
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- paths) and the name of raster map (e.g., "geology"). The other
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- fields are not needed for this configuration.
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+ <li> Now it is displayed the new configuration window,
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+ enter the configuration file name (e.g., "my_conf", do not use absolute paths)
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+ and the name of raster map (e.g., "geology").
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+ The other fields are not needed for this configuration.
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<li> Click on "Setup sampling frame", select "Whole maplayer" and click "OK"
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<li> Click on "Setup sampling areas", select "Moving window" and click "OK"
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<li> Click on "Use keyboard to enter moving window dimension"
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@@ -125,7 +120,6 @@ program rescale it automatically. For instance if you have selected a
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configuration file on a 200x200 raster map, then the sample area is
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10x10.
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-
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<h2>SEE ALSO</h2>
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<b>Core modules</b>:
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