[R-sig-Geo] John Snow's cholera data/map: a more sp-ish way?

Roger Bivand Roger.Bivand at nhh.no
Fri Oct 30 15:25:40 CET 2009

On Fri, 30 Oct 2009, Michael Friendly wrote:

> Hi
> In a new package, HistData, on R-Forge, I have a collection of historical 
> data sets, some map-related,
> including the map and data related to John Snow's famous map of the 1854 
> cholera outbreak in London.
> https://r-forge.r-project.org/projects/histdata/
> I have two examples in example(Snow) that re-create the map of deaths, one 
> showing Theissen polygon
> boundaries around the water pumps, the other showing  bivariate density 
> contours, but they are entirely
> done using base graphics and ordinary data frames.  I'm wondering if anyone 
> is willing to help me show
> a more sp-ish way to organize the data and map info and make these and other 
> plots.
> More generally, I would welcome any other contributions to this project.


This is good news. I'm sorry that I didn't respond to your message about 
the Guerry dataset from almost two weeks ago, I ought to have done. I'll 
try to get back to you on both that question:


and this one. I encourage others to join in, because the R-forge package 
has the potential to become a valuable resource.

Best wishes,


> -Michael

Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, 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

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