similar to: New CRAN package sp: classes and methods for spatial data

Much like time, spatial locations are not likely to change for observed data. Still, R has no infrastructure or knowledge about spatial locations. Many packages that deal with spatial data in R use their own classes to deal with spatial data. On the workshop on spatial statistics software held during DSC2003 (organized by Roger Bivand), we decided that a base class that defines classes for

Dear All I would really appreciate some help with a script which a colleague wrote for me, but I am having problems running (and have not been able to contact my colleague). The script is designed to compare the area of suitable habitat in binary projections of a large number of species current and future distributions, and create an excel file detailing the total area suitable in the

List, In order to get rid of some old, unreadable S3 code in package sp, I'm trying to rewrite things using S4 methods. Somewhere I fail, and I cannot sort out why. In order to isolate the problem, I created two functions, doNothing<- and dosth, and both should do nothing. The issue is that in most cases they do nothing, but in some cases dosth(obj) changes the class of obj and breaks with

Thanks to Edzer and Roger, I can now plot with increased font sizes. However, jpeg still does not reproduce these, nor does it show up in high quality. What I would like to do is produce some highresolution jpegs. Any help would be appreciated Thanx Herry R2.4 on Mandriva 10.2 linux. Dr Alexander Herr Spatial and statistical analyst CSIRO, Sustainable Ecosystems Davies Laboratory, University

Dear all, I had to place points at random, one in each of larger number of polygons (actually in objects of class 'SpatialPolygonsDataFrame' , see sp library), and tried first to do it using spsample (from sp). Surprisingly, every 5-15 trials, the output was a NULL value. The doc says that ' this may occur when trying to hit a small and awkwardly shaped polygon in a large

When running a = runif(10) class(a) = "foo" Math.foo = function(x, ...) { NextMethod(.Generic) } signif(a, 3) cumsum(a) I don't understand why cumsum strips the class, but signif does not. Both claim in the documentation that "These are generic functions: methods can be defined for them individually or via the ?Math? group generic." -- Edzer Pebesma Institute for

Thanks, Paul -- setting the ~/.fonts.conf file the way ?X11 describes it under the section you pointed to resolved the problem for me, on ubuntu. On 09/04/2018 11:55 PM, Paul Murrell wrote: > Hi > > Thanks for that, but I still cannot confirm on ... > > sudo docker run -v $(pwd):/home/work/ -w /home/work --rm -ti > rocker/r-ver:3.5.1 > > Could you please read the

Hi Thanks for that, but I still cannot confirm on ... sudo docker run -v $(pwd):/home/work/ -w /home/work --rm -ti rocker/r-ver:3.5.1 Could you please read the comments within the "Cairo Fonts" section of the ?X11 help page, in case that offers some explanation. Paul On 29/08/18 02:15, Martin M?ller Skarbiniks Pedersen wrote: > On Fri, 24 Aug 2018 at 19:53, Edzer Pebesma >

resending to provide a more informative subject line.... On Fri, Jan 2, 2009 at 3:21 PM, Kingsford Jones <kingsfordjones at gmail.com> wrote: > Hi David, > > A general answer to your question is: yes, R would be useful for such > analyses - particularly when interfaced with a GIS. For an > introduction to the types of spatial tools available in R see the Task > View for

On Fri, 24 Aug 2018 at 19:53, Edzer Pebesma <edzer.pebesma at uni-muenster.de> wrote: > > In plotmath expressions, R's degree symbol, e.g. shown by > > plot(1, main = parse(text = "1*degree*C")) > > has sunk to halfway the text line, instead of touching its top. In older > R versions this looked much better. I can confirm this problem. R version 3.5.1

Suppose I'm author of a package on which quite a few other packages depend. When I submit to CRAN, I run R CMD check on it, Kurt does that too, and if things work out fine, it is accepted. When one or more of the packages that depend on it break because of my changes, however, hell breaks loose. I would like to extend my testing (currently: R CMD check pkg) to running R CMD check on all

The sp package provides class definitions for spatial data, and utilities for spatial data handling and manipulation. The release of sp version 0.9-56 introduces changes in the ways in which Polygon, Polygons, and SpatialPolygons objects are created, moving from R code to compiled C code. Because of these changes, it is possible that users will see changed output. The package maintainers have

The sp package provides class definitions for spatial data, and utilities for spatial data handling and manipulation. The release of sp version 0.9-56 introduces changes in the ways in which Polygon, Polygons, and SpatialPolygons objects are created, moving from R code to compiled C code. Because of these changes, it is possible that users will see changed output. The package maintainers have

This warning message is on my to-look-at list; I agree that sometimes it's obviously possible for the system to get the information if it tries hard enough. The message means what it says: Class information in a session includes the currently loaded subclasses of a particular class. Not critical but sometimes useful. In this case, (as I understand it without having looked recently), the

The following came up when Roger Bivand and I discussed R's name spaces and overlap in packages, in the bus to the field trip during StatGIS, last Tuesday: If two packages create the same class, say "variogram", and both are loaded, then using a method for an object of class "variogram" cannot discriminate between them and will call the method in the package loaded last.

Hi I am seeking to understand why the methods package (to be specific `methods:::.findOrCopyClass` when called by `setIs` when called by `setClass`) emits a warning message such as ` class "SpatialLinesNULL" is defined (with package slot 'rgeos') but no metadata object found to revise subclass information---not exported? Making a copy in package 'minweSpatialNULL `

In plotmath expressions, R's degree symbol, e.g. shown by plot(1, main = parse(text = "1*degree*C")) has sunk to halfway the text line, instead of touching its top. In older R versions this looked much better. -- Edzer Pebesma Institute for Geoinformatics Heisenbergstrasse 2, 48151 Muenster, Germany Phone: +49 251 8333081

A while ago our institute was approached by a large company, say XXX, who asked whether we would like to become an Xxx development center, as we are active in the same area. After some negotation we did, believing there will be mutual benefits. Some time later, after putting up the Xxx development center logo on the institute home page, my feeling grew that we are also, and probably to a larger

Sorry for the emails, I just wanted to have an example. layer$z 1 1 3 4 6 2 2 3 4 1 2 9 1 4 5 2 1 8 How to convert the matrix to layer$z = c(1, 4, 5, 2, 1, 8, 2, 3, 4, 1, 2, 9, 1, 1, 3, 4, 6, 2)? I think this vector is the order that levelplot can use. Thanks again. On Mon, Jan 15, 2018 at 10:58 PM, lily li <chocold12 at gmail.com> wrote: > Hi Bert, > > I think

2017-09-22 19:04 GMT+02:00 Michael Lawrence <lawrence.michael at gene.com>: > The %*% function is a primitive. As it says in the documentation under > ?Methods_Details > > Methods may be defined for most primitives, and corresponding > metadata objects will be created to store them. Calls to the > primitive still go directly to the C code, which will