Displaying 20 results from an estimated 200 matches similar to: "gpclib library"
2007 Jun 15
1
gpclib problem
Hi all,
I am trying to test the new adehabitat package but I have a problem with
a linked library, "gpclib".
When I try do install it I have this output:
install.packages("gpclib", dependencies=TRUE,
repos="http://cran.cnr.berkeley.edu/")
Avviso in install.packages("gpclib", dependencies = TRUE, repos =
"http://cran.cnr.berkeley.edu/") :
argument
2004 May 11
2
How to draw holes generated by gpclib using plot function
Hi.
I've tried to create a polygon with one hole by gpclib using following
example script.
holepoly <- read.polyfile(system.file("poly-ex/hole-poly.txt", package
="gpclib"), nohole = FALSE)
area.poly(holepoly)
plot(holepoly,poly.args=list(col="red",border="blue"))
And I noticed plot function couldn't draw polygons with holes correctly.
2003 Jan 14
1
install problem: gpclib
Dear list,
I face some problems installing gpclib_1.0-1.tar.gz:
R-161
R : Copyright 2002, The R Development Core Team
Version 1.6.1 (2002-11-01)
[...]
system("R CMD INSTALL gpclib_1.0-1.tar.gz")
WARNING: ignoring environment value of R_HOME
ERROR: This R is version 1.5.0
package 'gpclib' depends on R 1.6.1
The same happens with
http://www.bioconductor.org/getBioC.R
2004 Nov 10
1
Loading some function at R startup
Dear R-users,
I've built these functions usefell for me to
import/export data from/to Excel:
importa.da.excel<-function(){read.delim2("clipboard",
dec=",")
## questa funzione consente di importare dati da Excel
in R
## selezionare in Excel le celle che contengono i
dati,
## compresi in nomi delle colonne
## Autore: Vito Ricci email:vito_ricci at yahoo.com
## Data di
2003 Jan 08
0
New package: gpclib
I have just uploaded a package to CRAN called `gpclib' for clipping large
and complex polygons. This package provides an R interface to Alan
Murta's very fast General Polygon Clipper library (written in C), which
has an optimized version of the Vatti algorithm. Not all features of
Murta's library are implemented -- right now you can do intersections,
differences, and unions. There
2003 Jan 08
0
New package: gpclib
I have just uploaded a package to CRAN called `gpclib' for clipping large
and complex polygons. This package provides an R interface to Alan
Murta's very fast General Polygon Clipper library (written in C), which
has an optimized version of the Vatti algorithm. Not all features of
Murta's library are implemented -- right now you can do intersections,
differences, and unions. There
2011 Jul 22
1
Start-up messages when Importing from a package
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
2003 Oct 23
2
GIS re-mapping / polygon overlap
In Germany the Unemployment Agency uses a sectioning of the german map that
is different from the usual Administrative Boundaries.
Some demographic data are available in Administrative Boundaries only, some
in Unemployment Boundaries only.
I would like to generate estimates in one boundary system of data availabe
in the other boundary system, and would appreciate advice concerning the
following
2010 Jun 02
2
Faster union of polygons?
Dear R-helpers,
thanks for yesterday's speeding-up tip. Here is my next query:
I have lots of polygons (not necessarily convex ones, and they never
have holes) given by x,y coordinates.
I want to get the polygon that is the union of these polygons. This is
my current method, but I am hoping there is a faster method (up to
thousands of polygons, each with ca. 40 xy points).
Example:
2009 Jun 10
1
gpc.poly datatype
I have a list of polygons generated by the contourLines() command (each
object of the list is a list in itself with two objects: a vector of x
values, and a vector of y values for each vertex). I wish to convert that
list into a gpc.poly object of multiple contours. How do I do this? gpclib
apparently has no method of coercing lists into the gpc.poly object type.
As well, when I have a
2010 Jul 14
2
qplot in ggplot2 not working any longer - (what did I do?)
This is the first time that I have tried to update packages with a
tinkered around with .Rprofile. I start R with R --vanilla and it
does not load my .Rprofile, but when I issue the command
update.packages() R downloads the packages as expected, but then seems
to load .Rprofile before compiling the packages sources. What am I
doing wrong?
kindest regards,
Stephen Sefick
see- Session info
2008 Nov 19
1
rkward on Ubuntu heron with R2.8.0
I am running R on Ubuntu Heron.
I recently updated to R 2.8.0 from the default (2.6) in the Ubuntu heron
repository by adding
deb http://cran.stat.sfu.ca/bin/linux/ubuntu hardy/
I updated all packages installed in /usr/lib/R/site-library and those in
my home directory /home/duncan/R/i486-pc-linux-gnu-library/2.6
without obvious issues. I installed adehabitat and gpclib, which should
be good
2013 Jan 24
3
Implications of a Dependency on a GPLed Package
I intend to submit a newly developed package to CRAN (to be licensed under the GPL), which prompted me to re-read the GPL FAQ. The following section caught my attention:
> If a programming language interpreter is released under the GPL, does that mean programs written to be interpreted by it must be under GPL-compatible licenses?
>
> When the interpreter just interprets a language,
2010 Feb 04
3
mgcv problem
Dear friends,
I have install the last version 2.10 and now I have probles with 'mgcv' which can be load. I proved to eliminated and reinstalled but always obtain the same message:
> library (mgcv)
This is mgcv 1.6-1. For overview type `help("mgcv-package")'.
Error in runif(1) :
.Random.seed is not an integer vector but of type 'list'
Error : .onAttach non
2006 Nov 22
1
problem with the plm package
Hi all,
I have a problem in installing and using the plm
package using R 2.2.0 on windows xp.
I installed it from a .zip file downloaded from
the CRAN. Apparently everything is ok:
> utils:::menuInstallLocal()
package 'plm' successfully unpacked and MD5 sums checked
updating HTML package descriptions
However, when I try to load it:
> library(plm)
Errore in lazyLoadDBfetch(key,
2010 Jun 09
1
[R-sig-Geo] How to extract coordinates values from a shapefile?
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
2010 Jul 08
0
0 exit status on packages update try
I am not entirely sure what is going on. I am sure that I am missing
something. maptools won't detach... Thanks for all of your help.
R 2.11.1
OS Ubuntu 10.04
R --vanilla
install.packages("sp", dep=TRUE)
Loading required package: reshape
Loading required package: plyr
Loading required package: grid
Loading required package: proto
This is vegan 1.17-3
Loading required package:
2003 Feb 19
3
Rcmd check does not recognize formal generic function as code object
Dear all,
I am trying to write a package using formal methods and classes from the
methods package. I have not been able to get the package to pass rcmd check
without warnings, because rcmd check does not recognize my generic
functions as code objects and therefore queries why they have documentation
entries.
I have isolated the problem in a very small trivial example which I give
below. I
2005 Nov 01
4
S4 classes in existing packages
R-devel,
I'm interested in looking at some examples of existing R packages that
rely heavily on S4 classes to get a feel for varying styles and
package organization techniques. Could you recommend any packages
that might serve as a good starting point?
Thanks in advance,
Jeff
2005 Nov 01
4
S4 classes in existing packages
R-devel,
I'm interested in looking at some examples of existing R packages that
rely heavily on S4 classes to get a feel for varying styles and
package organization techniques. Could you recommend any packages
that might serve as a good starting point?
Thanks in advance,
Jeff