[GRASS-dev] [GRASS GIS] #2269: r.univar silent instead of NaN

[GRASS GIS]

#2269: r.univar silent instead of NaN
-------------------------+--------------------------------------------------
 Reporter:  neteler      |       Owner:  grass-dev@…              
     Type:  defect       |      Status:  new                      
 Priority:  normal       |   Milestone:  6.4.4                    
Component:  Raster       |     Version:  svn-releasebranch64      
 Keywords:  r.univar     |    Platform:  Unspecified              
      Cpu:  Unspecified  |  
-------------------------+--------------------------------------------------
 r.univar should not remain silent when the computational
 region is only containing NULL cells. Instead "NaN" should be
 printed as result for the individual min, max, etc values.

 {{{
 GRASS 6.4.4svn (nc_spm_08):~ > g.region n=1 s=0 w=0 e=1 res=0.5 -p
 projection: 99 (Lambert Conformal Conic)
 zone:       0
 datum:      nad83
 ellipsoid:  a=6378137 es=0.006694380022900787
 north:      1
 south:      0
 west:       0
 east:       1
 nsres:      0.5
 ewres:      0.5
 rows:       2
 cols:       2
 cells:      4
 GRASS 6.4.4svn (nc_spm_08):~ > r.univar elevation
  100%
 GRASS 6.4.4svn (nc_spm_08):~ > r.univar elevation -g
 GRASS 6.4.4svn (nc_spm_08):~ >
 }}}

 The issue is in r.univar, stats.c line 123. However, not
 that easy to fix since sometimes zones are considered,
 sometimes not.

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/2269>
GRASS GIS <http://grass.osgeo.org>