Package: SPAS
Type: Package
Title: Stratified-Petersen Analysis System
Version: 2020.1.1
Date: 2020-01-01
Author: Carl James Schwarz
Maintainer: Carl James Schwarz <cschwarz.stat.sfu.ca@gmail.com>
LinkingTo: TMB, RcppEigen
Imports: BB, MASS, Matrix, msm, numDeriv, plyr, TMB (>= 1.7.15)
Description: The Stratified-Petersen Analysis System (SPAS) is designed
    to estimate abundance in two-sample capture-recapture experiments 
    where the capture and recaptures are stratified. This is a generalization
    of the simple Lincoln-Petersen estimator.
    Strata may be defined in time or in space or both, 
    and the s strata in which marking takes place 
    may differ from the t strata in which recoveries take place.
    When s=t, SPAS reduces to the method described by 
    Darroch (1961) <https://www.jstor.org/stable/2332748>.
    When s<t, SPAS implements the methods described in
    Plante, Rivest, and Tremblay (1988) 
    <https://www.jstor.org/stable/2533994>.
    Schwarz and Taylor (1998) <doi:10.1139/f97-238> describe
    the use of SPAS in estimating return of salmon stratified by
    time and geography. 
    A related package, BTSPAS, deals with temporal stratification where 
    a spline is used to model the distribution of the population 
    over time as it passes the second capture location.
    This is the R-version of the (now obsolete) standalone Windows 
    program available at <http://www.cs.umanitoba.ca/~popan/spas/spas_home.html>.
License: GPL (>= 2)
RoxygenNote: 7.0.1
Suggests: knitr, rmarkdown
VignetteBuilder: knitr
NeedsCompilation: yes
Packaged: 2019-12-02 05:22:50 UTC; cschwarz
Repository: CRAN
Date/Publication: 2019-12-02 09:30:11 UTC
Built: R 4.1.0; x86_64-apple-darwin17.0; 2021-02-20 04:55:37 UTC; unix
Archs: SPAS.so.dSYM
