search for: adehabitatlt

...me between receivers. ?If I obtain an estimate of the diffusion coefficient from multiple observations how can I use it to predict the movement based kernel distribution between two receivers ? So rather than estimating the diffusion coeffiient from the data as demonstrated in the documentation for adehabitatLT I would like to use BRB.D() to visualize the kernel distribution between two locations based on known movement parameters, or at least explore the idea. However, I am not sure how to proceed. Below is an example of the type of data I am working with. ? I would be grateful for some thoughts or suggs...

...e run into a few problems running first passage time analysis. I'm hoping someone might be able to help me sort this out. I'm fine up to the point of creating the ltraj object from a dataset. /test<-read.table("~/Desktop/R_Directory/test.txt",header=TRUE) attach(test) library(adehabitatLT) xy<-test[,c("x","y")] date1<-as.character(date) date<-as.POSIXct(date1) fit1<-as.ltraj(xy,date,id=test$name,burst=name,typeII=TRUE)/ from here things start to get fuzzy 1) Instead of following the basic expression, /fpt(lt, radii, units = c("seconds",...

...he 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 animal movement analysis I will still continue to maintain the "old" adehabitat, but on the long-term, adehabitat will be replaced by these four packages. Detailed justification for the development of these packages is given below. ======================================...

...he 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 animal movement analysis I will still continue to maintain the "old" adehabitat, but on the long-term, adehabitat will be replaced by these four packages. Detailed justification for the development of these packages is given below. ======================================...

Today I installed the newest R develepment branch R version 2.14.0 Under development (unstable) (2011-03-18 r54866) on FreeBSD 9.0-CURRENT (amd64). All seems fine so far. After that I updated my R packages with option 'checkBuilt=TRUE'. There are four packages (spatstat, pscl, adehabitatLT, adehabitatHR) which gives an error like this: Error in dyn.load(file, DLLpath = DLLpath, ...) : kann shared object '/usr/local/lib/R/library/spatstat/libs/spatstat.so' nicht laden: /usr/local/lib/R/library/spatstat/libs/spatstat.so: Undefined symbol "Rf_pythag" Fehler:...

...ostgis/index.html>' package. rpostgisLT is aimed at those using R and/or the PostgreSQL/PostGIS database system to manage and analyze animal trajectory (movement) data. Package functions allow bi-directional transfer between the database and "ltraj" objects from the R package "adehabitatLT <https://cran.r-project.org/web/packages/adehabitatLT/index.html>", which has an extensive set of trajectory manipulation and analysis functions. To install the package: install.packages("rpostgisLT") To get started, please take a look at the Readme <https://cran.r-projec...

...ostgis/index.html>' package. rpostgisLT is aimed at those using R and/or the PostgreSQL/PostGIS database system to manage and analyze animal trajectory (movement) data. Package functions allow bi-directional transfer between the database and "ltraj" objects from the R package "adehabitatLT <https://cran.r-project.org/web/packages/adehabitatLT/index.html>", which has an extensive set of trajectory manipulation and analysis functions. To install the package: install.packages("rpostgisLT") To get started, please take a look at the Readme <https://cran.r-projec...

...any way to look up the function? I'm not an expert and don't understand much of the technicalities mentioned in the Writing-R-extensions manual. I only would like to see how the method I think is used is actually implemented. I use R.2.13.1, Windows 7. The package I'm referring to is adehabitatLT, function acfang.ltraj -> res <- .C("acfangl",...) Many thanks in advance! Jacqueline [[alternative HTML version deleted]]

...ing functions 3 times. (In real life more often.) How #do I do that? library(adehabitatHR) #> Loading required package: sp #> Loading required package: deldir #> deldir 0.1-14 #> Loading required package: ade4 #> Loading required package: adehabitatMA #> Loading required package: adehabitatLT #> Loading required package: CircStats #> Loading required package: MASS #> Loading required package: boot library(rgdal) #> rgdal: version: 1.2-8, (SVN revision 663) #> Geospatial Data Abstraction Library extensions to R successfully loaded #> Loaded GDAL runtime: GDAL 1.11.3,...

Dear all, I have a data similar to this: myframe<- data.frame (ID=c("Ernie", "Ernie","Ernie","Ernie"), Timestamp=c("24.09.2012 08:00", "24.09.2012 09:00", "24.09.2012 10:00", "25.09.2012 10:00"), Longitude=c("8.481","8.482","8.483","8.481"),

Hi professors I'm finding the best package in R for manage a big database about vessels. I need to divided the travel of each boat into tracks. I have GPS points. I would join these points in a line on the map. I make that with the function "lines", but I can't divided by vessel or by track, I saw several packages, for tracking animals but they had specifically variables. And I

...ore than two classes, so that the number of phenotypes belonging to each class is constant across all the simulations. waffect is used to assess empirically the statistical power of Genome Wide Association studies. Updated packages ---------------- adaptivetau (1.0), adehabitat (1.8.10), adehabitatLT (0.3.5), aod (1.3), asypow (2012.04-1), BayesDA (2012.04-1), bayesTFR (1.5-1), Bergm (2.3), BoolNet (1.50), bqtl (1.0-27), cccrm (1.1), censReg (0.5-10), cherry (0.2-6), coefplot (1.1.7), coloc (1.08), CompRandFld (1.0.2), ConjointChecks (0.0.7), copula (0.99-1), crawl (1.3-4), deseasonalize (1.03)...