[R] R code to extract shape polygons for any state for loading into Geobugs
Roger Bivand
Roger.Bivand at nhh.no
Sat Jul 16 19:36:05 CEST 2011
NEVER, ever, post a question on a new topic in an existing thread - see the
posting guide; you pollute the archive, and harm yourself by having your
question "disappear". For conversion of SpatialPolygons* objects to read
into WinBUGS, see ?sp2WB in the maptools package. Your question is more
appropriate for the R-sig-geo list.
Roger
Shant Ch wrote:
>
> Hello R users,
>
> I am fitting a spatio-temporal model for the areal data related to school
> districts of Texas, US using geobugs. For that I need to load the polygon
> shape
> file in geobugs.In Bradley Carlin's website there was an S-plus program
> called
> poly.S to extract polygons for any state in the United States in the
> appropriate format for loading into GeoBUGS which is no more now and that
> too
> on S. Is there any R code to extract the polygons for all school districts
> of a
> state in the United States or something of that type, the format which can
> be
> used in geobugs?
>
> Bhargab
>
>
>
>
>
>
>
> ________________________________
>
> To: r-help at r-project.org
> Sent: Thu, July 7, 2011 4:40:19 PM
> Subject: [R] subset from a dataset after comparing its one column to a
> related
> vector
>
> Hello R users,
>
> I have two data sets like the following. Form of dataset:
>
> data:
>
> X1 X2 X3 X4 X5
> 1902 RE 3 594 9
> 1903 RE 3 1340 7
> 1904 AA 3 760 14
> 1908 RE 4 1759 18
> 1909 EX 2 387 1
> 2901 AU 6 3116 2
> 3801 AA 1 304 29
> 3902 RE 5 2482 6
>
> I need to select rows of a data set based on the common observations of
> X1.
> Using intersect command I got the common observations of X1 from the two
> data
> sets as:
>
> common=c(1902, 1904, 1908, 1909, 3801).
>
> Using subset command I can select portions separately. But in general if I
> am
> given this type of dataset - "data" with large number of rows and also a
> list of
>
> X1 - "common" containing many elements, can anyone please let me know how
> to
> select portion of the data whose X1 values are same as common values.
>
> If any questions let me know.
>
> Shant.
> [[alternative HTML version deleted]]
>
> ______________________________________________
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> PLEASE do read the posting guide
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>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
-----
Roger Bivand
Department of Economics
NHH Norwegian School of Economics
Helleveien 30
N-5045 Bergen, Norway
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