Package: TruncatedPCQM
Title: Density Estimation for Point-Centered Quarter Method with
        Truncated Sampling
Version: 0.1.2
Authors@R: 
    c(
        person(given = "Wenzhe", family = "Huang", role = c("aut", "cre"),
               email = "51280155097@stu.ecnu.edu.cn"),
        person(given = "Guochun", family = "Shen", role = "aut"),
        person(given = "Dingliang", family = "Xing", role = "aut"),
        person(given = "Jiangyan", family = "Zhao", role = "aut")
    )
Maintainer: Wenzhe Huang <51280155097@stu.ecnu.edu.cn>
Description: 
    Implements a systematic methodology for estimating population density from
    point-centered quarter method (PCQM) surveys when distance measurements are
    truncated by a maximum search radius (right-censored). The package provides
    a unified framework for analyzing such incomplete data, addressing both
    completely randomly distributed (Poisson) and spatially aggregated
    (Negative Binomial) populations. Key features include: (1) Adjusted
    moment-based density estimators for censored distances; (2) Maximum
    likelihood estimation (MLE) of density under the Poisson (CSR) model; and
    (3) Simultaneous MLE of density and an aggregation parameter under the
    Negative Binomial model. For more details, see Huang, Shen, Xing, and Zhao
    (2026) <doi:10.48550/arXiv.2603.08276>.
License: GPL (>= 3)
Encoding: UTF-8
Language: en
RoxygenNote: 7.3.3
Depends: R (>= 3.5.0)
Imports:
Suggests: testthat (>= 3.0.0), dplyr (>= 1.1.0)
Config/testthat/edition: 3
URL: https://github.com/rcjhrpyt-droid/TruncatedPCQM
BugReports: https://github.com/rcjhrpyt-droid/TruncatedPCQM/issues
NeedsCompilation: no
Packaged: 2026-03-24 05:50:34 UTC; Lenovo
Author: Wenzhe Huang [aut, cre],
  Guochun Shen [aut],
  Dingliang Xing [aut],
  Jiangyan Zhao [aut]
Repository: CRAN
Date/Publication: 2026-03-27 10:30:02 UTC
Built: R 4.6.0; ; 2026-04-27 04:50:53 UTC; unix
