On Tue, 24 Aug 2010, Ricardo Rodríguez wrote:
hi all am new to the use of R-cran, I have a question that you can carry
objects grassgis calculations or the results of a particular process.
thanks for the help and attention
Please first read the Spatial task view on your CRAN mirror carefully,
Dear list,
I have problems to coerce a SpatialGridDataFrame object to a
SpatialPixelDataFrame. I 've calculated a kerneldensity (splancs) and I want
to convert the results from the SpatialGridDataFrame to a
SpatialPixelDataFrame.
My R-code:
library (maptools)
library (splancs)
library (rgdal)
Your df variable should have coordinates in it and in the form of a matrix
or SpatialPoints (from ?SpatialGridDataFrame: points coordinates, either
as numeric matrix or as object of class SpatialPoints-class). Based on the
code you provided, I would guess that you have a few columns to spare, and
You have a typo.
It is SpatialPixelsDataFrame. note the s
Nikhil Kaza
Asst. Professor,
City and Regional Planning
University of North Carolina
nikhil.l...@gmail.com
On Aug 25, 2010, at 4:43 AM, Dorothea Lemke wrote:
Dear list,
I have problems to coerce a SpatialGridDataFrame object to a
Dear all,
The institute for geoinformatics of the university of Münster is happy
to announce a two-day workshop on handling and analyzing
spatio-temporal data in R. You'll find the full announcement and
description on http://www.opengeostatistics.org/
Workshop goals are: (1) to meet other R
There are a two ways that I am aware of to generate a matrix of point-to-point
distances computed by traversing a network of roads:
1. One well-tested and reasonably fast solution is the igraph package on CRAN,
using the shortest.paths function
2. There is a more specialized (and still
On Wed, Aug 25, 2010 at 3:55 PM, jeremy@dot.gov wrote:
There are a two ways that I am aware of to generate a matrix of
point-to-point distances computed by traversing a network of roads:
1. One well-tested and reasonably fast solution is the igraph package on
CRAN, using the
Good day all, I hope someone can help.
I'm new to the contourplot() function and because the contour plots
I'm making have very close contour lines, I'd like to label only the
minimum and maximum values. Is there a straight forward way of doing
this?
Thus far, I've tried setting the labels
On Wed, Aug 25, 2010 at 1:53 PM, Edzer Pebesma
edzer.pebe...@uni-muenster.de wrote:
Barry, what exactly did you try out before you posted?
Your claim is not completely true: geoR has a function
as.geodata.SpatialPointsDataFrame, so you can do, for instance:
library(geoR)
data(meuse) # from
I think that such a package would be very useful. It could have a
single function like
convert(x, 'AnotherClass')
The package would only need to depend on sp, all the other packages
would be suggested such that you do not need to install the packages
you do not use.
Robert
On Wed, Aug 25,
Hello,
Can anybody give an explanation of why spatial eigenvectors (SEVs) such those
produced by ME() in package spdep can not be used in general additive models
(gams)and only in linear models? I think I understand generally why (the SEVs
are orthogonal and linearly independent) but I would
Rather something like this in the simplest form; i.e. using an S4
method for inheritance, and passing it on to other packages as much as
possible.
setMethod('convert', signature(x='ANY', class='character'),
function(x, class, ...) {
y - try( as(x, class), silent=TRUE )
if (class(y)
Dear List,
I am trying to predict species distributions using MADIFA (Calenge et al.
2008).
However, the codes (Monte Carlo simulation) are not familiar to me,
and they seem unavailable in package adehabitat.
(similar to the response from the authors)
Please kindly help and thank you in advance.
Elaine Kuo wrote:
Dear List,
I am trying to predict species distributions using MADIFA (Calenge et al.
2008).
However, the codes (Monte Carlo simulation) are not familiar to me,
and they seem unavailable in package adehabitat.
(similar to the response from the authors)
Please kindly help and
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