1topic_statistics(1)         GRASS GIS User's Manual        topic_statistics(1)
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Topic: statistics

6       d.correlate                                                  Prints  a  graph  of the correlation between raster maps (in
7                                                                    pairs).
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9       db.univar                                                    Calculates univariate statistics on selected table column.
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11       i.cca                                                        Canonical components analysis (CCA) program for  image  pro‐
12                                                                    cessing.
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14       r.clump                                                      Recategorizes  data  in  a raster map by grouping cells that
15                                                                    form physically discrete areas into unique categories.
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17       r.coin                                                       Tabulates the mutual occurrence (coincidence) of  categories
18                                                                    for two raster map layers.
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20       r.covar                                                      Outputs  a  covariance/correlation matrix for user-specified
21                                                                    raster map layer(s).
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23       r.cross                                                      Creates a cross product of the category values from multiple
24                                                                    raster map layers.
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26       r.kappa                                                      Calculates error matrix and kappa parameter for accuracy as‐
27                                                                    sessment of classification result.
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29       r.mode                                                       Finds the mode of values in a cover  map  within  areas  as‐
30                                                                    signed the same category value in a user-specified base map.
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32       r.object.geometry                                            Calculates geometry parameters for raster objects.
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34       r.quant                                                      Produces the quantization file for a floating-point map.
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36       r.reclass.area                                               Reclasses  a  raster map greater or less than user specified
37                                                                    area size (in hectares).
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39       r.regression.line                                            Calculates linear regression from two raster maps: y =  a  +
40                                                                    b*x.
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42       r.regression.multi                                           Calculates multiple linear regression from raster maps.
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44       r.report                                                     Reports statistics for raster maps.
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46       r.statistics                                                 Calculates category or object oriented statistics.
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48       r.stats                                                      Generates area statistics for raster map.
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50       r.stats.quantile                                             Compute category quantiles using two passes.
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52       r.stats.zonal                                                Calculates category or object oriented statistics (accumula‐
53                                                                    tor-based statistics).
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55       r.support.stats                                              Update raster map statistics
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57       r.univar                                                     Calculates univariate statistics from the non-null cells  of
58                                                                    a raster map.
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60       r3.stats                                                     Generates volume statistics for 3D raster maps.
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62       r3.univar                                                    Calculates  univariate statistics from the non-null cells of
63                                                                    a 3D raster map.
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68       t.rast.univar                                                Calculates univariate statistics from the non-null cells for
69                                                                    each registered raster map of a space time raster dataset.
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71       t.rast3d.univar                                              Calculates univariate statistics from the non-null cells for
72                                                                    each registered 3D raster map of  a  space  time  3D  raster
73                                                                    dataset.
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75       t.vect.univar                                                Calculates univariate statistics of attributes for each reg‐
76                                                                    istered vector map of a space time vector dataset
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78       v.db.univar                                                  Calculates univariate statistics on  selected  table  column
79                                                                    for a GRASS vector map.
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81       v.kcv                                                        Randomly partition points into test/train sets.
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83       v.normal                                                     Tests for normality for vector points.
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85       v.outlier                                                    Removes outliers from vector point data.
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87       v.qcount                                                     Indices for quadrat counts of vector point lists.
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89       v.rast.stats                                                 Calculates  univariate statistics from a raster map based on
90                                                                    a vector map and uploads statistics to  new  attribute  col‐
91                                                                    umns.
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93       v.univar                                                     Calculates univariate statistics of vector map features.
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96       See  also  the  corresponding  keyword statistics for additional refer‐
97       ences.
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99       Main index | Topics index | Keywords index | Graphical index | Full in‐
100       dex
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102       © 2003-2023 GRASS Development Team, GRASS GIS 8.2.1 Reference Manual
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106GRASS 8.2.1                                                topic_statistics(1)