[GRASS-dev] [GRASS GIS] #2999: Remove r.statistics module and prepare documentation for its removal

[GRASS GIS]

#2999: Remove r.statistics module and prepare documentation for its removal
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 Reporter:  wenzeslaus                           |      Owner:  grass-dev@…
     Type:  task                                 |     Status:  new
 Priority:  normal                               |  Milestone:  8.0.0
Component:  Raster                               |    Version:  svn-trunk
 Keywords:  r.statistics, r.stats.zonal,         |        CPU:  Unspecified
  r.stats.quantile, r.stats, r.mode, r.univar,   |
  documentation                                  |
 Platform:  Unspecified                          |
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 Glynn C ([GRASS-dev] r.statistics in G7, March 28, 2014):
 > Martin L:
 > > after discussion in OSGeo Vienna Code Sprint -
 > > `r.statistics2` has been renamed in trunk to `r.stats.zonal` and
 > > `r.statistics3` to `r.stats.quantile`
 >
 > In which case, r.statistics should probably be removed altogether.
 >
 > It has been (almost completely) superseded by the other two modules (a
 > fact which is less likely to be noticed in light of the renaming).
 >
 > The only functionality which isn't available via the other modules is
 > the mode calculation. The main reason being that the new modules
 > assume floating-point data (r.statistics uses r.stats which is based
 > upon categories), for which the concept of "mode" isn't particularly
 > meaningful.

 It seems to me that the mode calculation is now available in `r.mode`, so
 there is no reason to keep `r.statistics`. Since it is removal of a
 module, we might not be able in version 7 unless somebody has some idea
 how to do it without breaking the interface.

 In the meantime, we should remove links to `r.statistics` from other
 modules, improve their documentation (`r.statistics` has better docs then
 the other modules), and put some info to `r.statistics` that is is
 depreciated (we probably don't have a clear way how to do that). This
 might be nice to have even for 7.0.4, so if somebody volunteers to do
 that, it would be great, I won't get to this in the following weeks.

 Finally, we should be checking if `r.statistics` can be really removed. If
 somebody is using it, please speak up.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/2999>
GRASS GIS <https://grass.osgeo.org>