[R-sig-Geo] a spatial bestiary?

[Roger Bivand]

On Fri, 27 Dec 2013, Agus Camacho wrote:

> Many thanks for that Lee,
>
> As a student, I think would appreciate having in that script a summary of
> general strategies for extracting the values from each type of object and
> also for applying functions to them.

Please refer to the resources mentioned in:

https://stat.ethz.ch/pipermail/r-sig-geo/2013-December/020127.html

in a different thread. Because spatial data can be approached from 
different disciplinary and professional starting points, such as:

@techreport{herring11,
    author = {John R. Herring},
    title = {{OpenGIS\textregistered} Implementation Standard for 
Geographic information - Simple feature access - Part 1: Common 
architecture},
    institution = {Open Geospatial Consortium Inc.},
    number = {1.2.1, OGC 06-103r4},
    year = {2011}
}

or

@incollection{kresseetal:12,
   author = {Wolfgang Kresse and David M. Danko and Kian Fadaie},
   title = {Standardization},
   year = {2012},
   editor = {Wolfgang Kresse and David M. Danko},
   booktitle = {Springer Handbook of Geographic Information},
   publisher = {Springer},
   address = {Berlin Heidelberg},
   pages = {393--565}
}

it isn't obvious which end of the beast to examine first, tail, hoof, 
ears? At base this is a question about reference ontologies and support, 
so "a point" is very rarely just a numeric vector of length two or three, 
really. The sp classes don't even try to touch positional measurement 
error, for example, nor the data collection protocolls implicit in the 
given "position". It is hard to get the classes clear, and then methods 
require more again. The materials in the link are as far as we've got.

Roger

>
> Cheers
> Agus,
>
>
> 2013/12/26 <ldecola at comcast.net>
>
>> you can find a first cut at presenting BASE and SPATIAL objects at :
>>
>> http://ldecola.net/programs/R/bestiary.R
>>
>> i'll be using this in spatial R workshops i conduct and would appreciate
>> comments!
>>
>>
>> Lee De Cola.
>> ----- Original Message -----
>> From: "Etienne B. Racine" <etiennebr at gmail.com>
>> To: "Lee De Cola" <ldecola at comcast.net>
>> Cc: r-sig-geo at r-project.org
>> Sent: Wednesday, December 18, 2013 5:15:29 PM
>> Subject: Re: [R-sig-Geo] a spatial bestiary?
>>
>>
>>
>>
>> Lee, I share your confusion. Maybe something like a cheatsheet could help
>> ? It's not highly structured, but it present information in a different
>> way. These are two I'm aware of (I've made the last one).
>>
>> http://www.maths.lancs.ac.uk/~rowlings/Teaching/UseR2012/cheatsheet.html
>> or
>> http://www.rpubs.com/etiennebr/visualraster
>>
>> Etienne
>>
>>
>>
>>
>> 2013/12/13 < ldecola at comcast.net >
>>
>>
>>
>>
>>
>> I?ve been teaching and using R (and S-PLUS) for a couple of decades, and
>> using its spatial libraries for about half of that, but i still get
>> confused by the various ?geographically-aware? data objects that are
>> supported. Although Bivand?s Spatial.html page is quite helpful, I wonder
>> is there a ?bestiary? that outlines (perhaps in some kind of tree format?)
>> what they are, what geometries are represented, which libraries create or
>> support them, etc.?
>>
>> Lee De Cola, PhD, MCP.
>> DATA to Insight
>> LDECOLA at COMCAST.NET
>> Reston, Virginia
>> 703 709 6972
>> 571 315 0577 mobile
>>
>> [[alternative HTML version deleted]]
>>
>>
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>>
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>
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>

-- 
Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no