[GRASS-user] "Illegal value(s) of sample intervals" using i.cluster

[Gökçen Güner]

My bad, I forgot to use g.region again.

2013/1/1 Gökçen Güner <gokcenguner at gmail.com>

> Hi,
> I'm using WinGRASS-6.5.svn-r54428-453 on Win7. I want to use i.cluster
> with 2 bands. Metadata of one of them is here:
>
> r.info map=band4_2005 at PERMANENT
>
>
>  +----------------------------------------------------------------------------+
>  | Layer:    band4_2005 at PERMANENT           Date: Tue Jan 01 18:30:17
> 2013    |
>  | Mapset:   PERMANENT                      Login of Creator:
> murat           |
>  | Location:
> newLocation                                                      |
>  | DataBase:
> D:\gis\grassWS                                                   |
>  | Title:     ( band4_2005
> )                                                  |
>  | Timestamp:
> none                                                            |
>
>  |----------------------------------------------------------------------------|
>  |
> |
>  |   Type of Map:  raster               Number of Categories:
> 255             |
>  |   Data Type:
> CELL                                                       |
>  |   Rows:
> 7121                                                       |
>  |   Columns:
> 8081                                                       |
>  |   Total Cells:
> 57544801                                                   |
>  |        Projection: UTM (zone
> 36)                                           |
>  |            N:    4257015    S:    4043385   Res:
> 30                     |
>  |            E:     844215    W:     601785   Res:
> 30                     |
>  |   Range of data:    min = 0  max =
> 255                                     |
>  |
> |
>  |   Data
> Description:                                                        |
>  |    generated by
> r.in.gdal                                                  |
>  |
> |
>  |
> Comments:                                                                |
>  |    r.in.gdal
> input="C:\Users\murat\Dropbox\projedata\qgisWS\grassData\e\   |
>  |    tm\L71175034_03420050627_B40.TIF"
> output="band4_2005"                   |
>  |
> |
>
>  +----------------------------------------------------------------------------+
> (Tue Jan 01 18:44:02 2013) Command finished (0
> sec)
>
> The error of i.cluster with different parameters:
>
> i.cluster group=group2000 at PERMANENT subgroup=group2000
> sigfile=unsupervised_signature classes=16 sample=4,5 separation=0.5
> reportfile=D:\gis\grassData\etm\unsupervised_signature
> ERROR: Illegal value(s) of sample intervals (4,5)
> i.cluster group=group2000 at PERMANENT subgroup=group2000
> sigfile=unsupervised_signature classes=16 sample=4,5
> reportfile=D:\gis\grassData\etm\unsupervised_signature
> ERROR: Illegal value(s) of sample intervals (4,5)
> i.cluster group=group2000 at PERMANENT subgroup=group2000
> sigfile=unsupervised_signature classes=16 sample=1000, 1000
> reportfile=D:\gis\grassData\etm\unsupervised_signature
> ERROR: Illegal value(s) of sample intervals (1000, 1000)
> i.cluster group=group2000 at PERMANENT subgroup=group2000
> sigfile=unsupervised_signature classes=16 sample=81,71
> reportfile=D:\gis\grassData\etm\unsupervised_signature
> ERROR: Illegal value(s) of sample intervals (81,71)
>
> What should I do?
>
> Thanks in advance.
>
>
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