Peter Adler asked about constructing a `buffer' around a polygon.
In the spatstat package the function 'dilate.owin' will compute the
morphological dilation (the region of space consisting of all locations
that are less than or equal to d units distant from the original polygon).
The result is not
On Tue, 4 Sep 2007, Caroline Keef wrote:
> I am having trouble manipulating a large data set to change a spatial
> polygons data frame
>
> I have read in an ESRI polygon shapefile using rgdal and readOGR that
> contains 18804 polygons. I am trying to add two variables into the
> spatial data fram
Caroline Keef wrote:
> I am having trouble manipulating a large data set to change a spatial
> polygons data frame
>
> I have read in an ESRI polygon shapefile using rgdal and readOGR that
> contains 18804 polygons. I am trying to add two variables into the
> spatial data frame but it's not workin
I am having trouble manipulating a large data set to change a spatial
polygons data frame
I have read in an ESRI polygon shapefile using rgdal and readOGR that
contains 18804 polygons. I am trying to add two variables into the
spatial data frame but it's not working. I'm doing this using
cbind(
- Original Message -
From: Peter Adler <[EMAIL PROTECTED]>
Date: Sunday, September 2, 2007 8:45 pm
Subject: [R-sig-Geo] polygon buffers?
To: r-sig-geo@stat.math.ethz.ch
> Dear R gurus,
>
> I am very excited about all the spatials tools in R because they
> have
> almost liberated me fr
Just to add to this: QGIS and R under Linux works as well - But as there seem
to be slight problems with the grass console under QGRIS, I have the following
procedure (QGIS already connected to grass): I start xterm from the grass
console in QGIS and in this console R (or emacs...). Works nicely
