As Kjetil and Roger have said, either RSiteSearch(), or if you prefer a search engine use Markmail.org, which is a dedicated mailing list search engine.Nick
Original Message
Subject: [R-sig-Geo] Search engine for R-sig-Geo archives??
From: Tyler Dean Rudolph
Date: Thu, March 26
To add on Roger Bivand's answer:
try
RSiteSearch("kriging & R-sig-Geo")
which gives a lot of hits from this list.
Kjetil
On Thu, Mar 26, 2009 at 19:57, Roger Bivand wrote:
> On Thu, 26 Mar 2009, Tyler Dean Rudolph wrote:
>
> Am I missing something or is all the spatial-related R knowledge tha
On Thu, 26 Mar 2009, Tyler Dean Rudolph wrote:
Am I missing something or is all the spatial-related R knowledge that is to
be found in the R-sig-Geo forum not accessible by way of a simple search
engine? If not I would hope this to be forthcoming At present I am
going through the archives
Am I missing something or is all the spatial-related R knowledge that is to
be found in the R-sig-Geo forum not accessible by way of a simple search
engine? If not I would hope this to be forthcoming At present I am
going through the archives one month at a time and it is simply not working!
Hi there,
I have a spatial road network for which I would like to construct a
"distance map" as in the distmap() function in the spatstat package.
However this function only seems to readily accept .ppp, .psp, and owin
objects. How can I import my data into a format that can be used to create
a d
Hi
I tried to convert a SpatialLinesDataFrame with
dim(v...@data)
10615 4
and 153665 coordinate pairs.
It worked fine (as.psp(var)), but took about an hour to run.
sessionInfo()
R version 2.8.1 (2008-12-22)
i386-redhat-linux-gnu
locale:
LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=e
Hi All,
I'm wondering if anybody could give me a little guidance on formatting a
query using RPyGeo. I'm excited to be able to run Python geoprocessing
functions straight from R but am having trouble with the quote, double
quote kinds of issues.
Here's an example of what I'd like to run
rpy
Hello,
I have written a code that nead to convert SpatialLinesDataFrame to psp in
order to use statstat functions.
This functiun works well.
The problem is that when the shapefile is to big (all the little rivers of a
region for example: 3000), the as.psp function doesn't return anything and va
Brian,
PCA does not care about raster or vector. All you need is
a table of individuals x variables. Whether you get that
from a vector or a raster does not matter at all. Instead,
you must be careful with what your data mean. In particular,
you mention centroids. If those are centroids of polygo
Thanks for the response; the data sets are centroid based with 20 to 30
variables per centroid. What has been suggested will work with rasters but
not with vectors. What I need to know it is possible to conduct a PCA on
vector data sets and store the results as additional variables. I am
interested
Note that there has recently been a lot of
traffic on this issue, visit
http://grass.osgeo.org/wiki/Principal_Component_Analysis
i.pca has given trouble since many years ago, the consensus
was rather using m.eigensystem and r.mapcalc instead.
It seems that the fact is the i.pca is equivalent
to
Hi Jon and Tomislav,
Thanks for your answers. This is what I needed.
I know that krige.cv is a lot easier to use, but I just wanted to do a test
with this methodology.
Best wishes,
Els
-Original Message-
From: Jon Olav Skoien [mailto:j.sko...@geo.uu.nl]
Sent: dinsdag 24 maart 2009 1
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