Dear List,
excuse me if I am here to ask for more help to make a bubble maps for Italian cities, but unfortunately it is several days and I'll try that ... and I have next expire.In Internet there is this resource:http://azzalini.stat.unipd.it/SW/italia-mappa.Rthat concerns Italy and its cities. It's really useful, but in my case I need to highlight different data of some cities.
I think I could upload a map of Italy saved the geographical coordinates of dati.csv

 data = read.csv ('dati.csv')
City;Latitude;LongitudeBergamo;45.7044;9.6612Bologna;44.4942;11.3465Bologna;44.4964;11.353Bologna;44.4945;11.3492Bologna;44.4945;11.3492Roma;41.895500;12.482300Pisa;43.7167;10.3833Roma;41.8955;12.4823Torino;45.069000;7.689Milano;45.45;9.16667Pisa;43.7167;10.3989Bologna;44.4951;11.3556Milano;45.45;9.16667Messina;38.1905;15.554Camerino;43.1368;13.0587Milano;45.4631;9.1769Milano;45.4637;9.1881Napoli;40.8333;14.25Rome;41.8608;12.6215Milano;45.45;9.16667Salerno;40.78012;14.77459Pisa;43.7167;10.4Roma;41.9;12.45Venezia;45.4386;12.3267Venezia;45.4386;133.267Roma;41.9188;12.5118Napoli;40.8401;14.2516Siena;43.3191;11.3327Verona;45.4367;11.003Trieste;45.6586;13.7939Roma;41.90183;12.51182Padova;45.4167;11.8833Padova;45.4167;11.89Torino;45.0706;7.6866Trieste;45.6586;13.8Trieste;45.6486;13.78Sassari;40.5589;8.3181Trento;46.0667;11.1333Roma;41.9;12.45Bologna;44.4942;11.3465Firenze;43.7687;11.2569Cagliari;39.2155;9.10923Messina;38.1905;15.554Milano;45.45;9.16667Pisa;43.7161;10.3966Trento;46.0667;11.1333Ancona;43.6158;13.5187Cosenza;39.30023;17.28887
but are not successful, although it has tried in different ways.Someone could kindly tell me how to proceed or similar work.Thank you very much for your time and your expertise,
Annamaria



----Messaggio originale----

Da: gottiannamaria@virgilio.it

Data: 24-mar-2012 18.15

A: <edzer.pebesma@uni-muenster.de>

Ogg: R: Re: R: Re: [R-sig-Geo] bubble maps for Italian cities




Edzer,
Thanks 
for the useful indication! Sorry if the first request for help I had indicated my base 
level.Best regards,
Annamaria


----Messaggio originale----
Da: edzer.pebesma@uni-muenster.de
Data: 24-mar-2012 12.27
A: "gottiannamaria@virgilio.it"<gottiannamaria@virgilio.it>
Ogg: Re: R: Re: [R-sig-Geo] bubble maps for Italian cities

I can advise you to start working from books; we wrote one that might be
useful, called "applied spatial data analysis with R", but maybe first
steps with R is more appropriate.

Best regards,

On 03/23/2012 09:46 PM, gottiannamaria@virgilio.it wrote:
> Edzer,
> 
> thanks a lot for the information and for your time!
> Unfortunately I'm moving my first steps with R ... could you kindly give
> me more details?
> Best,
> 
> Annamaria
> 
> 
> 
> ----Messaggio originale----
> Da: edzer.pebesma@uni-muenster.de
> Data: 23-mar-2012 13.10
> A: <r-sig-geo@r-project.org>
> Ogg: Re: [R-sig-Geo] bubble maps for Italian cities
> 
> Annamaria,
> 
> library(sp)
> xy =
> SpatialPointsDataFrame(SpatialPoints(expand.grid(x=1:10,y=1:10)),data.frame(z=1:100))
> plot(xy, cex = xy$z/mean(xy$z), col = grey(.8*xy$z/max(xy$z)), pch=16)
> 
> #or
> 
> spplot(xy, cex = xy$z/mean(xy$z), col.regions = grey(.8*xy$z/max(xy$z)))
> 
> both plot bubbles (filled circles) with different size and different colour.
> 
> On 03/23/2012 12:02 PM, gottiannamaria@virgilio.it wrote:
>> Dear List,
>>
>> I should prepare a series of thematic maps of Italy with some cities
> highlighted with bubble of different colors (to indicate different
> types) and others with bubble of different sizes (to indicate different
> amounts). I searched around a solution but to no avail. I would be very
> grateful if someone could give me some pointers on steps to be done.
> Thank you very much,
>>
>> Annamaria
>>  
>> [[alternative HTML version deleted]]
>>
>> _______________________________________________
>> R-sig-Geo mailing list
>> R-sig-Geo@r-project.org
>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
> 
> -- 
> Edzer Pebesma
> Institute for Geoinformatics (ifgi), University of Münster
> Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251
> 8333081, Fax: +49 251 8339763  http://ifgi.uni-muenster.de
> http://www.52north.org/geostatistics      e.pebesma@wwu.de
> 
> _______________________________________________
> R-sig-Geo mailing list
> R-sig-Geo@r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
> 
> 

-- 
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of Münster
Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251
8333081, Fax: +49 251 8339763  http://ifgi.uni-muenster.de
http://www.52north.org/geostatistics      e.pebesma@wwu.de








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