1i.group(1) Grass User's Manual i.group(1)
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6 i.group - Creates, edits, and lists groups of imagery data.
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9 imagery, map management
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12 i.group
13 i.group --help
14 i.group [-rlsg] group=name [subgroup=name] [input=name[,name,...]]
15 [--help] [--verbose] [--quiet] [--ui]
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17 Flags:
18 -r
19 Remove selected files from specified group or subgroup
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21 -l
22 List files from specified (sub)group
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24 -s
25 List subgroups from specified group
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27 -g
28 Print in shell script style
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30 --help
31 Print usage summary
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33 --verbose
34 Verbose module output
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36 --quiet
37 Quiet module output
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39 --ui
40 Force launching GUI dialog
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42 Parameters:
43 group=name [required]
44 Name of imagery group
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46 subgroup=name
47 Name of imagery subgroup
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49 input=name[,name,...]
50 Name of raster map(s) to include in group
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53 i.group allows the user to collect raster map layers in an imagery
54 group by assigning them to user-named subgroups or other groups. This
55 enables the user to run analyses on any combination of the raster map
56 layers in a group. The user creates the groups and subgroups and
57 selects the raster map layers that are to reside in them. Imagery anal‐
58 ysis programs like g.gui.gcp, i.rectify, i.ortho.photo and others ask
59 the user for the name of an imagery group whose data are to be ana‐
60 lyzed. Imagery analysis programs like i.cluster and i.maxlik ask the
61 user for the imagery group and imagery subgroup whose data are to be
62 analyzed.
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65 The i.group options are only available for imagery map layers in the
66 current LOCATION_NAME.
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68 Subgroup names may not contain more than 12 characters.
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70 EXAMPLE
71 This example runs in the "landsat" mapset of the North Carolina sample
72 dataset. The following command creates a group and subgroup containing
73 only the visible light bands of Landsat-7:
74 i.group group=vis_bands subgroup=vis_bands input=lsat7_2000_10,lsat7_2000_20,lsat7_2000_30
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77 The GRASS 4 Image Processing manual
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79 g.gui.gcp, i.cluster, i.maxlik, i.rectify, i.ortho.photo
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82 Michael Shapiro, U.S.Army Construction Engineering Research Laboratory
83 Parser support: Bob Covill (Tekmap, Canada)
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85 Last changed: $Date: 2017-05-01 11:27:53 +0200 (Mon, 01 May 2017) $
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88 Available at: i.group source code (history)
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90 Main index | Imagery index | Topics index | Keywords index | Graphical
91 index | Full index
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93 © 2003-2019 GRASS Development Team, GRASS GIS 7.4.4 Reference Manual
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97GRASS 7.4.4 i.group(1)