Displaying 20 results from an estimated 300 matches similar to: "How can I use Adehabitat to obtain an .asc object with the predicted values of a niche model?"
2010 Apr 10
0
adehabitat raster import
Hello all,
I'm new to adehabitat and am having trouble getting my ascii files into the r.
I have 45 environmental data layers that are all stored in a folder as ascii
files. Is there an easy way to pull in all 45 of my data layers into a kasc
dataframe. I'm not new to r or multivariate modeling, but the documentation
seems confusing.
I've experimented with bringing a few of them in 1
2005 May 12
0
Package adehabitat version 1.3
Dear all,
I have just uploaded to CRAN the version 1.3 of the
package 'adehabitat'. Significant changes are
listed below:
- Several functions allowing the conversion from
and to classes of the package sp have been added.
Maps of class "asc", "kasc", "area", as well as
radio-monitoring of class "traj" can now be
converted to the spatial
2005 May 12
0
Package adehabitat version 1.3
Dear all,
I have just uploaded to CRAN the version 1.3 of the
package 'adehabitat'. Significant changes are
listed below:
- Several functions allowing the conversion from
and to classes of the package sp have been added.
Maps of class "asc", "kasc", "area", as well as
radio-monitoring of class "traj" can now be
converted to the spatial
2006 Oct 30
0
adehabitat version 1.5
Dear all,
I have just uploaded to CRAN the version 1.5 of the
package 'adehabitat'. Significant changes are
listed below:
* the package now contains a new function allowing a factorial
decomposition of the Mahalanobis distances in habitat selection studies,
named madifa().
* The ENFA can now be performed using all kinds of variables (numeric,
factors, fuzzy, mixing of several types,
2006 Oct 30
0
adehabitat version 1.5
Dear all,
I have just uploaded to CRAN the version 1.5 of the
package 'adehabitat'. Significant changes are
listed below:
* the package now contains a new function allowing a factorial
decomposition of the Mahalanobis distances in habitat selection studies,
named madifa().
* The ENFA can now be performed using all kinds of variables (numeric,
factors, fuzzy, mixing of several types,
2007 May 31
0
adehabitat version 1.6
Dear all,
I have just uploaded to CRAN the version 1.6 of the
package 'adehabitat'. Significant changes are
listed below:
* The package has been reorganized into four parts (see
?adehabitat-package for a description): (i) management of raster maps,
(ii) habitat selection / ecological niche analysis, (iii) home range
analysis, and (iv) analysis of animals trajects. The package contains
2007 May 31
0
adehabitat version 1.6
Dear all,
I have just uploaded to CRAN the version 1.6 of the
package 'adehabitat'. Significant changes are
listed below:
* The package has been reorganized into four parts (see
?adehabitat-package for a description): (i) management of raster maps,
(ii) habitat selection / ecological niche analysis, (iii) home range
analysis, and (iv) analysis of animals trajects. The package contains
2005 Feb 03
0
adehabitat version 1.2
Dear all,
I have just uploaded to CRAN the version 1.2 of the package
'adehabitat'. This package now contains new functions for
the estimation of home ranges (Nearest neighbour convex
hull, brownian bridge approach for kernel estimation),
estimation of schoener's ratio. This package now allows a
better management of objects of class "area" (see plot.area,
perarea, ararea).
2006 Feb 23
0
adehabitat version 1.4
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.
2006 Feb 23
0
adehabitat version 1.4
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.
2005 Feb 03
0
adehabitat version 1.2
Dear all,
I have just uploaded to CRAN the version 1.2 of the package
'adehabitat'. This package now contains new functions for
the estimation of home ranges (Nearest neighbour convex
hull, brownian bridge approach for kernel estimation),
estimation of schoener's ratio. This package now allows a
better management of objects of class "area" (see plot.area,
perarea, ararea).
2008 Oct 07
1
Ecological Niche Modelling on R
Dear all,
I have strong interest on Ecological Niche Model, which in general use a set
of environmental variables (continuous, categorical etc) and Presence (or
Presense/Absence) records for species. I think that "grasp" and "adehabitat"
packages could help me on these tasks.
My input layers are on ASC format, and the record of species is a data-frame
with X, Y, name of
2012 May 14
2
package ‘adehabitat’ is not available (for R version 2.15.0) on Mac OS X
Hi R- User,I tried to load package adehabitat for R version 2.15.0. But, I got error. even I download and save in local drive and tried to install from the local file. but still i got the following errors
install.packages("adehabitat", repos='C:/adehabitat_1.8.10.tgz')
package ‘adehabitat’ is not available (for R version 2.15.0)
> install.packages("adehabitat",
2009 Feb 24
0
[SoC09-Idea] Movement Ecology add-ons for adehabitat package
Hi all,
here's a proposal for a SoC project on wildlife movement patterns analysis.
A MSc student is available to anwser the call, of course. The idea has already
been briefly discussed with the mantainer of the adehabitat package and the
AniMov project community.
Short description
Develop some add-on functions to use the adehabitat package to perform basic
movement ecology analysis, in
2008 Oct 27
0
adehabitat version 1.8
Dear all,
I have uploaded to CRAN the version 1.8 of the package 'adehabitat'.
Significant changes are listed below:
* getverticeshr now relies on the function contourLines(), and returns
smoother estimates of the kernel home range (see the help page).
* the new function kernelkc (and related functions) now allows the
estimation of the utilization distribution in space and time of
2004 Sep 24
0
New package: adehabitat
Dear all,
I have just uploaded a package to CRAN a new package called 'adehabitat'.
This package is intended for ecologists who want to analyse the use of
space by animals.
Many functions currently used in this field are available to
highlight habitat selection by animals (selection ratios, ENFA, habitat
suitability maps
with the algorithm DOMAIN or Resource Selection Functions)
or to
2004 Sep 24
0
New package: adehabitat
Dear all,
I have just uploaded a package to CRAN a new package called 'adehabitat'.
This package is intended for ecologists who want to analyse the use of
space by animals.
Many functions currently used in this field are available to
highlight habitat selection by animals (selection ratios, ENFA, habitat
suitability maps
with the algorithm DOMAIN or Resource Selection Functions)
or to
2010 Apr 17
0
adehabitat functions
Is there a way to just build a madifa function in adehabitat just using a .csv
file with presences and the corresponding environmental data? I'm trying to
model the species distribution of a species using 45 environmental grids and r
crashes after loading just 5 of them. I'd like to develop the function and then
predict it using a line by line predict function, but can't figure out if
2007 Oct 02
0
Adehabitat package question - trying to generate animal home ranges
Hello,
I'm new to R and am trying to use the adehabitat package for home range and
habitat selection analysis for some animal radiotelemetry data sets I have,
but I can't get the home range functions (mcp & kernelUD) to work with my
data. I think that my problem is that I don't properly understand how the
package uses data frames and factors, and I may not be defining the id
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