SECR in R

The R package secr has most of the features of DENSITY and some major new ones:

modelling of density surfaces (inhomogeneous Poisson distribution of home ranges)
flexible formula-based model specification
model averaging
area search ('polygon') and route search ('transect') detectors
acoustic detection

The R environment offers great advantages for advanced users, including the ability to control details of optimization, batch processing etc.

secr 2.3.1 is the current version; recent changes are listed here. Earlier versions are also archived below.

Please report any difficulties or bugs in the current version. The features of DENSITY and secr 2.3 are compared in an appendix of the overview pdf (below).

See the links below for the package zip file containing the Windows binary and various pieces of documentation including an overview of secr and a pdf version of the help pages. To install the package under Windows, save the zip file to a local folder and use the menu option "Packages | Install packages(s) from local zip files...". Then remember to load it! You will also need the package abind (use Packages | Install package(s)... to download from CRAN).

secr is also available from CRAN - including Windows and Mac binaries - so you should not need to download from here. Just follow your usual route for installing packages from your R GUI (e.g., Packages | Install package(s) in Windows).

secr_2.3.1.zip 4079K << current Windows binary
secr_2.3.1.tar.gz 2758K

secr-overview.pdf 317K
secr-datainput.pdf 202K
secr-densitysurfaces.pdf 673K
secr-manual.pdf 631K << current help pages
secr-sound.pdf 216K
secr-polygondetectors 266K

secr_2.3.0.zip 4048K
secr_2.3.0.tar.gz 2735K
secr_2.2.0.zip 3086K
secr_2.2.0.tar.gz 2143K
secr_2.1.0.zip 3086K
secr_2.1.0.tar.gz 2312K
secr_2.0.0.zip 2893K
secr_2.0.0.tar.gz 2029K
secr_1.5.1.zip 3266K
secr_1.5.1.tar.gz 2822K
secr_1.5.0.zip 3169K
secr_1.5.0.tar.gz 2791K
secr_1.4.1.zip 3097K
secr_1.4.1.tar.gz 2744K
secr_1.4.0.zip 2984K
secr_1.4.0.tar.gz 2669K
secr_1.3.0.zip 3151K
secr_1.3.0.tar.gz 1670K
secr_1.2.11.zip 1562K
secr_1.2.11.tar.gz 999K

Please direct queries to the DENSITY | secr forum at phidot.org.
Read forum FAQ.

Last Updated: 22 December 2011