similar to: Questions about imports to a namespace

I'm not sure if this is what you want. But the function coordinates() in sp package gives you the coordinates of SpatialObjects. Regards. Rodrigo. 2010/6/9 Nikhil Kaza <nikhil.list@gmail.com> > You need to execute gpclibPermit() to enable gpclib. > > library(maptools) should have issued a warning to that effect. > > > Nikhil Kaza > Asst. Professor, > City and

Hola a todos. Estoy utilizando R , más concretamente los paquetes maptools y sp, para realizar mapas de España por comunidades y provincias y de Andalucía por provincias y municipios. El caso es que para el mapa de municipios en Andalucía, una vez leído el fichero shp con readShapePoly , si luego por ejemplo , quiero poner todos los polígonos de un color utilizando library(maps)

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

Dear all, It is my understanding that using 'importFrom' in the NAMESPACE of a package allows to avoid conflicts between different packages defining objects with identical names. However, I can still see conflicts while loading the package using 'library'. Here is a toy example, with a package 'foo' importing 'as.igraph' from the igraph package, and 'nj'

Hello, I am using the following code to create ppp files from csv data and map shape files, but I am getting some errors which I have been unable to fix by searching them online: library(spatstat) library(maps) library(maptools) NYC2<-readShapePoly("nybb.shp") # this is a map of the NYC boroughs without waterways and no census tract divisions (but it does include lines separating

I'm using ssplot for drawing a map of Austria and colour the nine provinces regarding their share of employment. Now I wanted to add the figures in each province and failed miserably. Using the locator() and text() function caused the error message "invalid graphics state". I try to show you what I have done below, maybe you can find a general fault in my codes. I know that it's

Hi R-Users, I have plotted a region whose polygon coordinates are given in shp format ED50 UTM (zone=30) ) using "readShapePoly" in library(maptools). Now I need to plot a set of points in that region (my.dataframe, with X and Y geographic coordinates), which have been read using GPS in Longitud-Latitud form (using WGS84 system), so I first need to convert these Longitud-Latitud data

Dear List, I'm building a package that uses 2 functions of the 'sp' package, and I declared them in my NAMESPACE file as follow: importFrom("sp", proj4string, coordinates) The package is built without any problem, but when I load the package, I get the following message: " Loading required package: sp Note: polygon geometry computations in maptools

Hi, I have a problem that concerns combination of the package Maptools and Splancs I have 2 shapefiles that i want to manipulate (one of type point and one polygon).I import them in R using Maptools but then i can't estimate a quartic Kernel using Splancs. The package doesn't recognize the shapes (invalid points and poly argument).I don't know if this is an easy task but i have

Gracias Beatriz, efectivamente, lo que indicas en tu ejemplo es lo que obtengo al final de mi proceso. En todo caso pruebo tu opción con mis datos, si es como imagino seguro que es más rápida de montar y más elegante que tratar el resultado de un sink() (recuerdo que en su momento lo intenté con fotify pero no supe bien como atacarlo, no conocía el enlace que me mandas, por tanto lo pruebo de

In > R.version.string [1] "R Under development (unstable) (2011-12-15 r57901)" section 1.6.6 of 'Writing R Extensions' says Note that exporting methods on a generic in the namespace will also export the generic, and exporting a generic in the namespace will also export its methods. and Note that importMethodsFrom will also import any generics defined in

A few years back, I wrote some code to plot maps with the maptools package. Now I am trying to reproduce my results, only to find out that maptools has been updated and my code no longer works. I've been able to fix the first part of it by forcing spb <- maptools:::read.shape("/home/sasha/Documents/maps/spb.shp") (as read.shape has been deprecated) but now when I do plot(spb,

Hi, I am working at adding namespace to my packages, carefully following the doc "Writing R extensions" and some threads on the web. However I cannot find clear explanation about how to best deal with the import or importFrom functions in the name space. To make it short: To declare dependencies in the description file either after Depends: (packages including functions that are

I am cleaning up the rms package to not export functions not to be called directly by users. rms uses generic functions defined in other packages. For example there is a latex method in the Hmisc package, and rms has a latex method for objects of class "anova.rms" so there are anova.rms and latex.anova.rms functions in rms. I use:

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)

On Mon, Mar 12, 2018 at 2:18 PM, Martin Maechler <maechler at stat.math.ethz.ch> wrote: > [...] > Is that so? Not according to my reading of the 'Writing R > Extensions' manual, nor according to what I have been doing in > all of my packages for ca. 2 years: > > The rule I have in my mind is > > 1) NAMESPACE Import(s|From) \ >

I am developing a package that imports some functions from another package. The imported package (qcc) does not have a namespace and this is causing problems with loading of my package, which has a namespace. Is there a workaround to allow loading the namespace-less package? I searched the archives and found a suggestion that the package should be included in the Depends list, but this has not

Hello, I try to set up namespaces for packages. It is fine for several of them, except one whose compilation fails (under Windows XP & R 2.0.0): ---------- Making package svViews ------------ adding build stamp to DESCRIPTION installing NAMESPACE file and metadata Error in parse(file, n, text, prompt) : syntax error on line 21 Execution halted make[2]: *** [nmspace] Error 1 make[1]: ***

I don't understand why I get the following results. I define two classes 'Base' and 'Derived', the latter of which 'contains' the first. I then define a generic method 'test' and overload it for each of these classes. I call 'callNextMethod()' in the overload for Derived. From the output, it appears that the overload for Base gets called twice. Why is

Dear All, I understand the R CMD checks with only the base package attached, everything else (including the other packages bundled with the base R) should be imported and most importantly declared in the Imports field from the DESCRIPTION file. However, I do use functions from other packages than base (utils, grDevices, stats, graphics), for which it is sufficient to declare importFrom() in the