[GRASS-user] i.maxlik's reject versus i.segment's goodness

[Moritz Lennert]

On 18/11/14 09:47, Markus Metz wrote:
> On Sun, Nov 16, 2014 at 3:21 AM, Vaclav Petras <wenzeslaus at gmail.com> wrote:
>> Hi,
>>
>> I executed the examples in i.cluster and i.maxlik manuals and also the
>> following i.segment command:
>>
>> i.segment group=lsat7_2002 at w1-imagery output=lsat7_2002_segments
>> threshold=0.5 goodness=lsat7_2002_segments_goodness
>>
>> (using the imagery group created in i.cluster example, otherwise unrelated)
>>
>> I looked at goodness from i.segment and then reject from i.maxlik. I noticed
>> that there is some correlation between these two. Well, this is quite okay
>> since they are using same pixel values. However, then I noticed that low
>> values of goodness (-5000, ...)
>
> i.segment's goodness estimate is supposed to be in the range [0,1].
> Fixed in r62793,4. Can you test again?

Could you explain / put into the manual the explanation of the 
calculation / meaning of this goodness of fit ?

Moritz