[R-sig-Geo] error in errorsarlm

[Nikhil Kaza]

example(errorsarlm)

Nikhil Kaza
Asst. Professor,
City and Regional Planning
University of North Carolina

nikhil.list at gmail.com

On Aug 1, 2010, at 7:57 AM, elaine kuo wrote:

> Dear Dr. Bivand and list
>
> Thank you for the patience.
>
> Only one question remains
>
>
>
>>>
>>> 2. great distance circle
>>>
>>> => longlat = TRUE returns no valid observation ...
>>>   similar error messages have been researched in the archived mail
>>>   but no identical case found...
>>>  Please kindly suggest when longlat=TRUE,
>>>  whether the unit of both longitude and latitude is degree.decimal..
>>>  (confused with the manual explanation "measured in kilometer")
>>>
>>
>> The threshold is in km when longlat=TRUE, but the coordinates are in
>> decimal degrees. Please state the representation of your  
>> coordinates - are
>> they in decimal degrees or not?
>
>
> =>  Yes, mine are in decimal degrees.
>
>>
>> No, simply that you are including too many neighbours leading to  
>> too much
>> smoothing for many observations.
>>
>> Please try everything on small examples until you understand what  
>> you are
>> doing. Best, use publically available small examples, and include  
>> complete
>> verbatim code (or post code on a website), max. 10 lines.
>
>
> => please advise any publicly available small examples to try  
> errosarlm...
>
>     I have none at hand.. :P Thank you.
>
> Elaine
>
> 	[[alternative HTML version deleted]]
>
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