similar to: SpatialPolygonsDataFrame to map conversion?

I have obtained shapefiles for Indian states from here: http://www.maptell.com/index.php?option=com_remository&Itemid=159&func=fileinfo&filecatid=115&parent=category Problem: I want to extract centroid coordinates for each State, but there is some coding problem with the shapefiles that prevents this. #Code: #After extracting the shapefiles from the india_state.zip file, then:

Hi, I'd like to read a shapefile into a Map object. This is exactly what read.shape{maptools} is suppoed to do, according to the documentation I found in the link below. However, this doesn't seem to work library(maptools)x <- read.shape(system.file("shapes/sids.shp", package="maptools")[1])Error: could not find function "read.shape" I haven't

Hi, I have a data frame listing US counties and a quantity ("number") per county and I have a shapefile of the US with county ID's. I would like to plot the "number" variable on a map (in the shapefile) using a color range per county (e.g. white = min(number) = 2, black = max(number) = 15). Can anyone help me actually plotting the data on the map? This is how far I got.

Dear list, I have a question regarding the included polygon in the khat function of the splancs library defining the area where points appear. I have not only one simple polygon included, my map includes several islands. I read my map which was a shape file by readShapeSpatial of the maptools library. Then I split up the SpatialPolygonsDataFrame into the included polygons by coor <- NULL

Hello R Community, I have imported a dataset which contain X Y coordinates and would like to recreate a shape file after some data analysis. What i have done is to import some taxlot data and join them based on some criteria. I want to check to see how well the joining went by reviewing the results in GIS. A couple things. I cant seem to import a shape file correctly using the maptools

Hi list, Well, this time I’ve a doubt with mapping generation. I was already able to read and plot shapefiles, plot point on this map. All this without any problems, but now I want to do something that I think, only Golden Software Surfer is capable of. I would like to plot a kriging result on the existing map (map script below). Well I looked for on the net, but I was not able to be sure of

Hi list. I would like to know how do I insert a North arrow, stored as a png file in my computer, in a map? I found lots of post asking similar things, one of them mentioned the pixmap package. The map was done using map() and shapefiles (the code is below). I’m using the pixmap () and addlogo() functions. Well I can import the png with pixmap() function (I guess, once there’s no error message),

Hi, I am working with a SpatialPolygonsDataFrame of many islands. There are a lot of polygons (islands) composing my SpatialPolygonsDataFrame. I want to extract the elevation of each island. I need to separate the different polygons (like dissolve function in arcgis), to have the elevation of each island. Do you have any idea how can I do that ? I already read a lot of forum, and read the

Oscar, al final no he podido esperar hasta mañana Con: library(maptools)library(sp) poligonos <- readShapeLines("C:\\...\\DATOS\\MUNICIPIO.shp") sink("C:\\ ... \\DATOS\\MUNICIPIO.csv") coordinates(poligonos) Consigo un fichero con la suficiente estructura para tratarlo fácilmente y de una tacada montar la tabla .csv tal y como he indicado en un correo anterior Necesito el

Hi ! I have a shapefile that I can easily read into R using library(maptools). My problem stems from some warning messages that come even though everything seems to work fine. library(maptools) districts <- read.shape(filen = "a_ds", dbf.data = TRUE) length(districts$Shapes) so far so good. when I try and plot this I get a nice plot and a warning message: > plot(districts)

Hello. I'm new on that forum, so I would use some help... I'm programing with R program, have some exercise to do. So here it goes. 1. I have to upload two libraryes "sp" and "maptools" 2. This command is troubling me : towns <- readShapeSpatial("OB/OB.shp") 3. When I'm pressing f5, there is an error called: Error: could not find function

Dear All, When I tried to run the following code (taken from the *spdplyr* package vignettes): library(spdplyr) library(maptools) data(wrld_simpl) worldcorner <- wrld_simpl %>% mutate(lon = coordinates(wrld_simpl)[,1], lat = coordinates(wrld_simpl)[,2]) %>% filter(lat < -20, lon > 60) %>% dplyr::select(NAME) I got the following error messages: Error in (function (cl,

Hi R users I need the map of France?s ? communes ? (towns) to build a map Is there a way to get it? More generally: How to do to get the map of a country and its different geographical levels? Best regards -- View this message in context: http://old.nabble.com/map-of-a-country-and-its-different-geographical-levels-tp26225645p26225645.html Sent from the R help mailing list archive at

Hi, I want to use map("state") and have the ecoregion shape (please see link) file projected onto this. ftp://ftp.epa.gov/wed/ecoregions/cec_na/NA_CEC_Eco_Level3.zip ftp://ftp.epa.gov/wed/ecoregions/cec_na/NA_CEC_Eco_Level3.zip Could someone please show me how; I have never messed with this sort of thing. Thanks. -- View this message in context:

I have a SpatialPolygonsDataFrame object (sp package). It contains 40 polygons. Now I want to join some of the polygones. I cannot figure out how to do that? Any ideas? The code below produces a map of Germany and I need to join some counties. library(sp) library(RColorBrewer) # get spatial data for Germany on county level con <- url("http://gadm.org/data/rda/DEU_adm3.RData")

Hello everybody, I'm trying to understand how to draw a smoothed scatterplot on a geographic map with R. Have a dataframe with point locations (long, lat) and was able to simply plot these points on a shp map by using the maptools package. However, instead of having simply the raw points on the map, I would like to have a "smoothed" scatterplot of the same superimposed on the map.

Dear listers, I am working since a while with the sp package and still wonder how the plot methods are managed with sp spatial objects. For instance, SpatialPolygonsDataFrame objects have obviously a plot method. However it cannot be found in the list provided by methods(plot) . Furthermore ?plot.SpatialPolygonsDataFrame, nor ?plot.SpatialPolygons, etc.. provide a help, though the lattice

Revised versions of maptools, a package for reading geographical data from shapefiles, and sp, a package with classes and methods for spatial data handling, have been released on CRAN. They are maptools release 0.5-1 and sp release 0.8-1. The maptools package now depends on sp (>= 0.8), so that users of maptools will need both to update the package itself, and to install the sp package. All

Revised versions of maptools, a package for reading geographical data from shapefiles, and sp, a package with classes and methods for spatial data handling, have been released on CRAN. They are maptools release 0.5-1 and sp release 0.8-1. The maptools package now depends on sp (>= 0.8), so that users of maptools will need both to update the package itself, and to install the sp package. All

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