[R-sig-Geo] First thoughts on spatio-temporal classes...

[VIRGILIO GOMEZ RUBIO]

Hi Blair,

I am visiting SAMSI this fall and I would like to get involved in  
this. Is there any working group discussing this? If not, perhaps we  
could have a chat with all the people interested in the area (samsi,  
duke, unc, ncsu,...) and talk about this.

Best wishes,

Virgilio

Sent from my iPhone

On 18/09/2009, at 12:25, "Blair Christian" <blair.christian at gmail.com>  
wrote:

> Hi all,
>
> This is in response to an earlier post of mine inquiring about  
> options for
> spatio-temporal classes in R.
>
> Thank you to all who replied for your interest in spatio-temporal data
> classes and methods.  There were many excellent comments in your  
> emails.  I
> have been attending the SAMSI conference on space-time
> analysis<http://www.samsi.info/programs/2009spatialprogram.shtml>this
> week and have put together a summary (a working draft) of some
> thoughts<http://www.isds.duke.edu/%7Ejbc30/SpatioTemporal/workGroupComp.pdf 
> >I
> have about classes.
>
> I also started a bare bones webpage:
> http://www.isds.duke.edu/~jbc30/SpatioTemporal/
>
> A also put up the latex source code and bib file I used if you are
> interested in making additions, corrections, or other.  Please email  
> me any
> changes, and I'll maintain an RCS version of it.
>
> I'll put some plots up there when I have time to give you all an  
> idea of
> what my context is.  Ironically, I can't ssh to the webserver from  
> work (at
> the US EPA), so I can only update it from home.
>
>
> Here are some questions to you all:
>
> - What data do you have interest in analyzing?
>
> - What type of code do you have to contribute?
>
> - Are you interested in writing classes/methods?  If so, what is your
> background?  (I can provide several tutorials on S4 classes on the  
> web that
> I found useful).
>
> I will pass along these related packages as being related to spatio- 
> temporal
> data:
> trip (trip class extends SpatialPointsDataFrame), pastecs,  
> tripEstimation,
> hydrosalinity(?), PBSmapping(?), RadioSonde, STARIMA(?), Bayesian  
> Vector
> Accumulation(?), spBayes(?), INLA (Havard Rue website)
>
> I skimmed a fair number of time related packages (more than just  
> timeDate
> and chron), including xts, zoo, (tseries, timeSeries, ts, its, etc)  
> as well,
> and came to the conclusion that it would best to allow either a time  
> series
> type package (regular or irregular times) as well as a package for
> continuous time (functional data, like paths of animals, in the trip
> library), and I'm a fan of the fda
> library<http://ego.psych.mcgill.ca/misc/fda/>.
> It would be nice to have easy spline/FDA access for datasets where  
> time is
> collected in a continuous manner rather than in the usual arima grid
> setting.
>
> With that information dump, I'll try and get another update out in  
> about two
> weeks depending on my schedule, which should include any progress  
> I've made
> that I'm satisfied with.  I will respond to individual emails as well.
>
>
> Cheers,
> Blair
>
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>
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