[GRASS-dev] [GRASS GIS] #1984: i.pca should accept also group names as input (like r.out.gdal)

[GRASS GIS]

#1984: i.pca should accept also group names as input (like r.out.gdal)
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 Reporter:  neteler            |       Owner:  grass-dev@…              
     Type:  enhancement        |      Status:  new                      
 Priority:  normal             |   Milestone:  7.0.0                    
Component:  Imagery            |     Version:  svn-trunk                
 Keywords:  i.pca, r.out.gdal  |    Platform:  All                      
      Cpu:  All                |  
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Comment(by mmetz):

 Replying to [comment:3 hamish]:
 > in the case of i.pca, do the order of map inputs matter? order within
 the group may be predictable, but is it guaranteed long-term?

 The order does not matter for the output maps (PC scores), but does matter
 for the vectors (loadings), since each loading refers to a specific input
 band.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/1984#comment:4>
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