Displaying 20 results from an estimated 200 matches similar to: "Adehabitat package question - trying to generate animal home ranges"
2012 Jun 21
2
R crashes with >kud<-kernelUD(data, h="LSCV") script
Hi,
I am looking to perform a kernel density analysis in R, following the script that a friend of mine is using successfully. However, unlike for her, when I enter >kud<-kernelUD(data, h="LSCV"), R crashes and closes every time. This does not happen when I perform a different kernel analysis (>kud<-kernelUD(data))..
I have tried to un-install and re-install R, but it still
2009 Jun 25
1
Calculating home ranges using mcp in adehabitat
Hello,
I've been trying to calculate home range sizes (for Icelandic geese!) using
minimum convex polygons with the adehabitat package. I've tried to use the R
code shown by demo(homerange) in adehabitat and when that didn't work I've
fiddled around with it but to no avail...Below is the output of the demo
that I've attempted to follow, followed by a subset of my data (for one
2007 Sep 03
0
adehabitat version 1.7
Dear all,
I have uploaded to CRAN the version 1.7 of the package 'adehabitat'.
Significant changes are listed below:
* The Brownian bridge kernel estimation algorithm has been greatly
improved. It now takes more than 80% less time than the previous
version. A new function "liker" has also been added, which estimates the
one of the two smoothing parameters of the bridge
2007 Sep 03
0
adehabitat version 1.7
Dear all,
I have uploaded to CRAN the version 1.7 of the package 'adehabitat'.
Significant changes are listed below:
* The Brownian bridge kernel estimation algorithm has been greatly
improved. It now takes more than 80% less time than the previous
version. A new function "liker" has also been added, which estimates the
one of the two smoothing parameters of the bridge
2004 Apr 22
2
password change, domain not available
Dear Herman,
We had the same problems over here.
The problem seems to be related to Windows Hotfix KB828741.
Removing the hotfix through the control panel solved it for us.
Greetz,
Jerome Borsboom
>>BTW, i use samba 302 & 303 pre2..
>>
>>Thursday, April 22, 2004, 2:33:16 PM, you wrote:
>>
>>CBM> well the subject tell's it..
>>
>>CBM>
2008 Oct 24
0
Weighted LSCV 2d kernel smoothing
R List,
I am seeking help in the area of kernel smoothing. I am attempting to use LSCV values to conduct 2d and weighted 2d kernel smoothing (imported from an ArcMap shapefile), and have been unable to find tools to conduct such analysis in R. My biggest problem is determining the LSCV value and finding a tool that does weighted smoothing, as there are obviously many different packages that will
2012 Oct 30
0
lapply and kernelUD (adehabitatHR package): Home Range kernel estimation for a list of individuals
Dear R experts,
I'm using the adehabitatHR package in order to perform a kernel analysis and
estimate the home range of my input data (GPS relocations of 42
individuals).
I've done the analysis for one of the individuals and it worked perfectly
(see code below).
But now I'm trying to use a list and call the function lapply to do the same
thing through all the 42 individuals (also see
2013 Nov 05
1
Help on error (Error: could not find function "kernelUD")
Hello,
I am working through examples of generating Home Range using the
adehabitatHR package. Everything is going fine until I load the code for the
kernelUD function, it looks like this;
> data(puechabonsp)
> kud <- kernelUD(puechabonsp$relocs[,1], h="href")
> kud
I then get an error of; Error: could not find function "kernelUD"
Any thoughts on what I am
2008 May 29
0
Open Positions in Trieste, Italy
Dear all,
I apologize for using the list for a job ad, but hope it can interest
some of you. We are urgently seeking a web developer comfortable with
Rails and AJAX within a bioinformatics team at CBM, in Trieste, Italy.
CBM is a new research center with very active genomics,
bioinformatics, imaging and nanotechnology laboratories. We are
seeking a talented individual who is not only comfortable
2012 Jul 31
3
about lscv
Thanks in advance.
Nowadays I just calculate the bandwidth h of cross validation in kernel
smoothing using R language.
And I just looked up the usage of function, which is lscv(x,......,
exact=FALSE)
My question is what does "........" stand for and mean? do you mind
specifically explaining it for me?
Thanks
Regards
--
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2011 Feb 09
0
adehabitatMA, LT, HR and HS version 0.1
Dear all,
I have just uploaded 4 new packages on CRAN, which are on the long term
designed to replace the "old" package adehabitat:
* adehabitatMA: functions to perform spatial operations (morphology,
buffer, etc.)
* adehabitatHS: functions for the analysis of habitat selection by wildlife
* adehabitatHR: functions for home range estimation of animals
* adehabitatLT: functions for
2011 Feb 09
0
adehabitatMA, LT, HR and HS version 0.1
Dear all,
I have just uploaded 4 new packages on CRAN, which are on the long term
designed to replace the "old" package adehabitat:
* adehabitatMA: functions to perform spatial operations (morphology,
buffer, etc.)
* adehabitatHS: functions for the analysis of habitat selection by wildlife
* adehabitatHR: functions for home range estimation of animals
* adehabitatLT: functions for
2010 Jan 09
1
errors when installing packages (ubuntu)
Hi List,
I'm having problems installing certain packages. When I try to install
fields, I get the output below. I have highlighted the what I perceive as
the first error (spam seems to be a dependency of fields). Can I assume this
is causing dependency problems for fields, which fails to install at the
end, or is there a deeper problem? I run Ubuntu Karmic Koala on R 2.9.2.
2>
2007 Oct 06
1
problem installing fields package 3.5 on R 1.8.1 on linux
I am returning to using R after a little time away.
Saw some great new functions in the fields package and decided to upgrade.
Everything seems to go fine until I tried to actually load the package, when
I get an error:
>library(fields)
Error in parse(file, n, text, prompt) : syntax error on line 227
And (of course) I am unable to access any of the functions in the fields
package.
Below is
2009 Oct 24
1
Smoothing Parameter Kernel
Hello to everybody,
I need to know the Smoothing Parameter to obtain Home Range of an animal
through the Area Kernel. I have 200 locations with x and y. How can I obtain
the Smoothing Parameter with R for LSCV, CV and Href method???
Thank you.
--
View this message in context: http://www.nabble.com/Smoothing-Parameter-Kernel-tp26037651p26037651.html
Sent from the R help mailing list
2017 Aug 19
0
My very first loop!! I failed. May I have some start-up aid?
Thank you for providing the example code... for the request of running it
multiple times it would have helped if you could have confirmed that the
example ran through without errors... there were a lot of mistakes in it.
Look into using the reprex package to check your example next time.
I don't do this kind of analysis... I really don't know what to expect
from the functions. The
2016 Jul 07
3
"anvil: Error: connect limit: disconnection for unknown pid 17659 + ident lmtp/backup@backup.invalid"
I updated to 2.3.0 today, and now I'm getting these entries in my log:
Jul 7 14:26:20 mail-cbf dovecot: anvil: Error: connect limit: disconnection for unknown pid 17687 + ident lmtp/backup at backup.invalid
Jul 7 14:26:20 mail-cbf dovecot: anvil: Error: connect limit: disconnection for unknown pid 17659 + ident lmtp/backup at backup.invalid
Jul 7 14:26:21 mail-cbf dovecot: anvil: Error:
2005 Apr 21
2
do not understand what to do to correct this error
----------------------------------------------------------------------------
----
FULL RSYNC LOG
----------------------------------------------------------------------------
----
/usr/bin/rsync -av --force --delete-excluded
--exclude-from=/usr/local/etc/snapback/snapback.exclude -e ssh --delete
peru.cbm.mercyships.org:/ /home/backup/peru/hourly.0/
<bunch of lines deleted>
wrote 873039
2006 May 31
0
CT unit to drill on Mars, Revenue Up 200% - Ref. jh010 (PR#8918)
esteeming
Coiled tubing units are so compact and have such great potential, the Mars Drilling Project is evaluating a coiled tubing unit to drill for water on Mars. fells
disseverance
SPRING, TX--(MARKET WIRE)-- Coil Tubing Technology, Inc. (CTBG) announces the delivery of the first group of 8 Rotating Tools to oil and gas well service companies operating in Mexico and Oklahoma. Designed for use
2010 Jul 27
0
Problems with the function image()
Dear list members
I am calculating kernel home-ranges and would like to visualize them with the function image(). The xy-values consist of longitude and latitude data.
example:
x y
36154.97 355143.0
R-code:
xy<-hares[,c("x","y")]
id<-hares[,"date"]
(ud1 <- kernelUD(xy, id))
ud2 <- getvolumeUD(ud1)
image(ud2)
My problem is that the image