Functions to estimate the density and size of a spatially 
  distributed animal population sampled with an array of passive detectors, 
  such as traps, or by searching polygons or transects. Models incorporating 
  distance-dependent detection are fitted by maximizing the likelihood. 
  Tools are included for data manipulation and model selection.
| Version: | 
4.5.8 | 
| Depends: | 
R (≥ 3.5.0), methods | 
| Imports: | 
abind, graphics, grDevices, MASS, mgcv, nlme, parallel, raster (≥ 3.5-15), Rcpp (≥ 0.12.14), RcppNumerical, RcppParallel (≥
5.1.1), sf, stats, stringr, terra (≥ 1.5-12), tools, utils | 
| LinkingTo: | 
BH, Rcpp, RcppEigen, RcppNumerical, RcppParallel | 
| Suggests: | 
gdistance, knitr, readxl, rmarkdown, sp, spsurvey (≥ 5.3.0), testthat | 
| Published: | 
2022-11-29 | 
| Author: | 
Murray Efford  
    [aut, cre] | 
| Maintainer: | 
Murray Efford  <murray.efford at otago.ac.nz> | 
| License: | 
GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] | 
| URL: | 
https://www.otago.ac.nz/density/,
https://github.com/MurrayEfford/secr/ | 
| NeedsCompilation: | 
yes | 
| SystemRequirements: | 
GNU make | 
| Citation: | 
secr citation info  | 
| Materials: | 
NEWS  | 
| In views: | 
Environmetrics | 
| CRAN checks: | 
secr results |