search for: collared

Hi all, I have a simple data frame of three columns - one of numbers (really a categorical variable), one of dates and one of data. Imagine: collar date data 1 01/01/2013 x 2 02/01/2013 y 3 04/01/2013 z 4 04/01/2013 a 5 07/01/2013 b The 'collar' is a GPS collar that's been worn by an animal for a certain amount of time, and then may have been worn by a different animal after

Hi R help forum, I have a simple data frame of four columns - one of numbers (really a categorical variable), one of dates and one of data. I have over 500,000 data points to work with, spread over 40 files, each named after a different animal. These are contact data recorded by proximity loggers over two years between the animals of the file name and collars being worn by other animals. The

Hello there This is the first time I have used r-help message board so I hope I have got the right address. I am trying to check the residuals of a GLMM model(run using the package lme4). I have been able to check the residiuals of REMLs in lme4 using the following: m1<-lmer(vTotal~Week+fCollar+ (1|fCat), collars) res<-resid(m1) plot(res) qqnorm(res) library(MASS) par(mfrow=c(2,3))

"help" We want to estimate the number of caribou in Jasper. We recently conducted an aerial survey and saw 70 uncollared caribou and 8 of 11 collared caribou. We want to estimate the number of caribou in this population with 95% confidence limits. Gary White uses the hypergeometric distribution and determines the population estimates using maximum likelihood and 95%CL as -2LogLikelihoods. Below, I determined the p...

I am creating habitat selection models for caribou and other species with data collected from GPS collars. In my current situation the radio-collars recorded the locations of 30 caribou every 6 hours. I am then comparing resources used at caribou locations to random locations using logistic regression (standard habitat analysis). The data is therefore highly autocorrelated and this causes Type

Hi all, I have multiple datasets of time series data taken from GPS collars. The collars are supposed to take a fix every hour on the half hour, i.e., 0:30, 1:30, 2:30...23:30, (because it sometimes takes longer for the collars to acquire a location the minute of these locations vary from 30-34) but because of a software glitch in the collars, at random times the collars start taking multiple

Hello All and thanks in advance for any advice. I have a data frame with rows corresponding radio-collared animals (see sample data below). There is a start date (DATESTART), and end date (DATEEND), and the number of days on air (DAYSONAIR). What I would like to do is add a column called DATE to so that each row ID has a row for every day that the radio collar was on the air while copying all other da...

Hi r-help forum, I have been collecting contact data (with proximity logger collars) between a few different species of animal. All animals wear the collars, and any contact between the animals should be detected and recorded by both collars. However, this isn't always the case and more contacts may be recorded on one collar of the two. This is fine, it depends on battery life and other

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Greetings I''m having a network problem that I don''t understand. It involves/hinges upon an internal router running the latest Shorewall. We make weather radar control and networking software. Our customers are experiencing a connection timeout, but here in the office we are not. I have some slight suspicions as to why they see a

I need you help with this problem, I have a data-frame like this: BHID=c(43,43,43,43,44,44,44,44,44) FROM=c(50.9,46.7,44.2,43.1,52.3,51.9,49.3,46.2,42.38) TO=c(46.7,44.2,43.1,40.9,51.9,49.3,46.2,42.38,36.3) AR=c(45,46,0.0,38.45,50.05,22.9,0,25,9) DF<-data.frame(BHID,FROM,TO,VALUE) #add the length DF$LENGTH=DF$FROM-DF$TO where: + BHID: is the borehole

Here's one for you phone people.... An elderly lady phoned her telephone company to report that her telephone failed to ring when her friends called - and that on the few occasions when it did ring, her pet dog always moaned right before the phone rang. The telephone repairman proceeded to the scene, curious to see this psychic dog or senile elderly lady. He climbed a nearby telephone pole,

Hello, I am working within package 'maptools' to plot a number of collared animal locations by reading in shapefiles of locations, roads, hydrology, and landownership as imported layers. The trouble I have is that some individual locations are overlapping and I would like to "zoom" into or create new plots for overlapping points/points that are too close togeth...

Dear Listers, Apologize to pile up on the 'tz' issue in POSIX objects. I have a 'simple' thing on which I must make up my mind but cannot do it from the existing R-help threads. I am currently working on dog telemetry in China, and download time information from GPS collars. I would like to set up the corresponding POSIXxx variables in R to a given time zone. Eg Pekin

Jim Knoble wrote in <06004671-E946-4462-9076-5C11D5D46E40 at pobox.com>: |> On Jan 10, 2025, at 11:33, Steffen Nurpmeso <steffen at sdaoden.eu> wrote: |> Fyi there is the >35 years old BSD sysexits.h that unfortunately |> did not become standardized, but is widely available nonetheless. | |If you mean [this sysexits][*], that doesn't seem great for several \

Dear all , I would like to use the function randomForest to predict the probability of relocation failure of a GPS collar as a function of several environmental variables x (both factor and numeric: slope, vegetation, etc.) on a given area. The response variable y is thus success (0)/failure(1) of the relocation, and the sampling unit is the pixel of a raster map. My aim is to build a map

Corey Hickey wrote in <38d76f8e-0744-4bc5-b6e1-db7197e19ad7 at fatooh.org>: |On 2025-01-10 09:57, Jim Knoble wrote: |>> On Jan 9, 2025, at 19:14, Corey Hickey <bugfood-ml at fatooh.org> wrote: |>> |>> To address this, modify ssh-add to: |>> * [...] |>> * exit with a status of 0 instead of 1 |> |> When Damien wrote: |> |>> Adding

Steffen Nurpmeso wrote in <20250111031926.AGltefav at steffen%sdaoden.eu>: |Jim Knoble wrote in | <06004671-E946-4462-9076-5C11D5D46E40 at pobox.com>: ||> On Jan 10, 2025, at 11:33, Steffen Nurpmeso <steffen at sdaoden.eu> wrote: ||> Fyi there is the >35 years old BSD sysexits.h that unfortunately ||> did not become standardized, but is widely available

Dear all, I have just uploaded to CRAN the version 1.4 of the package 'adehabitat'. Significant changes are listed below: - The eigenanalysis of selection ratios (Calenge and Dufour, 2006, Ecology) can now be performed using the function eisera(). It can be used for the analysis of habitat selection when habitat can be considered to consist of several habitat types (e.g.

I'm working with animal relocation data. These are x-y coordinates of radio-collared coyotes over a period of time. Relocations are far enough apart in time to be considered independent. We want to test if the pattern of space-use has changed from one year to the next. Relocations roughly follow a 2D Gaussian distribution, but points are often clustered near one or more '...

Dear all, I have just uploaded to CRAN the version 1.4 of the package 'adehabitat'. Significant changes are listed below: - The eigenanalysis of selection ratios (Calenge and Dufour, 2006, Ecology) can now be performed using the function eisera(). It can be used for the analysis of habitat selection when habitat can be considered to consist of several habitat types (e.g.