Displaying 20 results from an estimated 110 matches similar to: "envelope in spatstat"
2009 Feb 20
0
Random labeling hypothesis in spatstat
Hi,
I am trying to test the random labeling hypothesis with my data. I have a point pattern of bird nests and each nest has a mark that it is either predated or not-predated. I want to test the null hypothesis that the K distribution of predation events is equal to the K distribution of all events (nests). This is the code I am using:
Kdif <- function(X,...,i) {
Kidot <-
2012 Nov 23
1
Spatstat: Mark correlation function
I normally use the following code to create a figure displaying the mark
correlation function for the point pattern process "A":
M<-markcorr(A)
plot(M)
I have now started to use the following code to perform 1000 Monte Carlo
simulations of Complete Spatial Randomness (CSR). It is a Monte Carlo test
based on envelopes of the Mark correlation function obtained from simulated
point
2002 Oct 17
0
Polar plot, circular plot (angular data)
Dear R-users,
Hereby a polar plot function for plotting angular data. I hope it will be usefull for some of you.
I had a need to plot frequencies of wind-directions. The not-that-cheap SigmaPlot software did not allow me to change the orientation of the angular axis to clockwise orientation (what is used for meteorological observations). I even tried the latest version availible at the time
2006 May 03
1
Permutation test of marked point pattern
Dear R users,
I am trying to perform a hypothesis test on a marked point pattern. I
would like to calculate the mean of the absolute value of the
difference of marks between nearest neigbours, randomize the marks
among points, then calculate this mean again. Ideally, I would test
whether random mean values smaller than the observed mean value occur
less than 5% of the time. I suppose 1000
2002 Nov 08
0
Polar plot, circular plot (angular data): II
Dear R-users,
As noted by Paul Murrell < p.murrell at auckland.ac.nz > there is errors in the code for polar plotting I send to R-help under the title "Polar plot, circular plot (angular data)" at Thu Oct 17 2002 - 12:18:20 CEST.
Thanks!
I have reorganized the code into a structure ('pp'). This allows plots to be modified to a greater extent by passing arguments by ...
2009 Nov 20
1
Spatstat, markcorr, max. radius limited??
Hello,
could please somebody help me. I want to apply the mark correlation function but for radii up to 75 meters (in 75 individual 1m steps). Unfortunately, "There is a sensible default for the values of the argument r at which the mark correlation function kf (r) should be evaluated", so that I do not get results for r > 25m. Can I change something in the function to get the
2009 Nov 23
0
R-help Digest, Vol 81, Issue 23
Hi,
keine ahnung. Das liegt jetzt bei Hr. Feld. Frag mal bei ihm nach.
Gr??e
Thushyanthan
r-help-request at r-project.org wrote:
> Send R-help mailing list submissions to
> r-help at r-project.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
> https://stat.ethz.ch/mailman/listinfo/r-help
> or, via email, send a message with subject or body 'help'
2010 Oct 19
1
could not find function "hmatplot"
I need a picture like this:
http://rwiki.sciviews.org/doku.php?id=graph_gallery:graph38
http://rwiki.sciviews.org/doku.php?id=graph_gallery:graph38
but when I try compile it
require("hexbin")
data(NHANES)# pretty large data set!
good <- !(is.na(NHANES$Albumin) | is.na(NHANES$Transferin))
NH.vars <- NHANES[good,
2005 Sep 05
1
bivirate k-function
Hi
Is there anyone who can help a reporter (me) with the following:
I want to use the bivirate k-function to determin if burgerbars are
clustered around schools.
To that purpose I’ve been told to use the bivirate k-function, but my
program Arcview doesn’t contain that.
Im stuck on a dead end – how to I for a start get the data into R?
Michael Holm
DICAR – Center for Anaytical Reporting
2011 May 28
0
how to train ksvm with spectral kernel (kernlab) in caret?
Hello all,
I would like to use the train function from the caret package to
train a svm with a spectral kernel from the kernlab package. Sadly
a svm with spectral kernel is not among the many methods in caret...
using caret to train svmRadial:
------------------
library(caret)
library(kernlab)
data(iris)
TrainData<- iris[,1:4]
TrainClasses<- iris[,5]
set.seed(2)
2007 Jul 06
5
Clustering nested data
Hi all,
I am interested in performing a cluster analysis on ecological data from
forests in Pennsylvania. I would like to develop definitions for forest
types (red maple forests, upland oak forests, etc.(AH AR in attached table))
based on measured attributes in each forest type. To do this, I would like
to 'draw clusters' around forest types based on information from various
tree
2007 Apr 12
2
Construct time series objects from raw data stored in csv files
Hi,
I have time series data stored in csv files (see below for an example of the
data). I understand that in order to analyze my data in R, I need to first
transform it into a ts object. Howeve, I could not find an example on how
exactly to do that. Is ts the only function I need? What are the steps that
I need to go through to build a time series object from raw data like this?
Thanks,
Tom
2006 Sep 25
5
Ruby LSAPI 1.9 + LSWS 2.2.2
Hi,
If you have been using or evaluating LiteSpeed web server + Ruby LSAPI
setup for Rails application, please make sure your are using the latest
release, Ruby LSAPI 1.9 and LSWS 2.2.2. We have been fixing a few bugs
that causes DB connection errors, incompatibilities with WEBrick/Mongrel
and ruby process management issues, currently, all bug reported has been
addressed in timely manner and
2006 Apr 07
1
PAE and gvinum
Hi all,
I got a machine with 8GB of RAM and plenty of disk space. I need gvinum to
manage big number of file systems but PAE enabled kernel does not compile
modules. I couldn't figure out how to get vinum statically compiled in the
kernel if that is the way to go. I am running 6-STABLE.
Please advise on how to get PAE kernel and gvinum working together!
TIA,
Stoyan
2004 Mar 09
4
aic calculation
hello,
could somebody refer me to the reason R uses
-2*loglik + 2*(#param)+2
to calculate AIC?
thank you
--
Stoyan Iliev
2006 Jun 21
7
Mongrel 0.3.13.1 -- Quick Small Fixes
Hi Everyone,
This is a small release that fixes a little bug, some of the
documentation, and adds the new RedirectHandler code and a @redirect@
call for the mongrel.conf files. It''s fresh so don''t rely on it.
Everyone should upgrade with the usual *gem update* command (which tells
you it''s "Upgrading...") and tell me how it works.
This release fixes:
* The
2005 Aug 31
11
Documentation generator?
I''m looking for a documentation generator for JavaScript code that can
handle the coding style used in prototype.js and script.aculo.us. Any
recommendations for such a tool?
In a similar vein, does it make a noticeable difference in production
when comments are removed and several script files are combined into a
single one?
Michael
--
Michael Schuerig Most people
2006 Aug 09
3
REST Client
Hello,
I would like to make some REST calls in my rails application which will
then parse the XML results and display them in a view. What I am having a
hard time doing is figuring out how to make the actual REST Call?
I have figured out how to use XMLRPC , but the site only supports REST. Is
there an easy way to initiate the GET/POST REST Calls that I need to make
and analyze the returned
2011 Oct 24
2
Problem(s) with installing Puppet Dashboard
Hello!
I''m trying to install puppet dashboard according to the instructions
in the documentation : http://docs.puppetlabs.com/dashboard/manual/1.2/bootstrapping.html
I am installing it from the .deb package, however after installation I
cannot find the "settings.yml" file.
Also, when trying to "prepare schema" by running rake
RAILS_ENV=production db:migrate it
2007 Aug 16
5
import zfs dataset online in a zone
Hello,
is there a way to add a zfs dataset to a zone online?
The only info I found is to configure the dataset in the zone via zonecfg then reboot the zone.
I would like to be able to add new separated dataset for each new db''s I add in the zone and of course if I need to reboot the zone every time I have to add/remove a db, my users will not be very happy... The only option I found