Package: drugDemand
Type: Package
Title: Drug Demand Forecasting
Version: 0.1.3
Date: 2024-02-27
Authors@R: 
    person("Kaifeng", "Lu", , "kaifenglu@gmail.com", role = c("aut", "cre"),
           comment = c(ORCID = "0000-0002-6160-7119"))
Description: Performs drug demand forecasting by modeling drug dispensing data while taking into account predicted enrollment and treatment discontinuation dates. The gap time between randomization and the first drug dispensing visit is modeled using interval-censored exponential, Weibull, log-logistic, or log-normal distributions (Anderson-Bergman (2017) <doi:10.18637/jss.v081.i12>). The number of skipped visits is modeled using Poisson, zero-inflated Poisson, or negative binomial distributions (Zeileis, Kleiber & Jackman (2008) <doi:10.18637/jss.v027.i08>). The gap time between two consecutive drug dispensing visits given the number of skipped visits is modeled using linear regression based on least squares or least absolute deviations (Birkes & Dodge (1993, ISBN:0-471-56881-3)). The number of dispensed doses is modeled using linear or linear mixed-effects models (McCulloch & Searle (2001, ISBN:0-471-19364-X)).
License: GPL (>= 2)
Imports: Rcpp (>= 1.0.10), dplyr (>= 1.1.0), rlang (>= 1.1.0), purrr
        (>= 1.0.2), stringr (>= 1.4.0), plotly (>= 4.10.1), survival
        (>= 2.41-3), mvtnorm (>= 1.1-3), erify (>= 0.4.0), stats (>=
        3.5.0), MASS (>= 7.3-54), nlme (>= 3.1-153), L1pack (>=
        0.41-24), eventPred (>= 0.2.3), parallel (>= 4.1.2), foreach
        (>= 1.5.2), doParallel (>= 1.0.17), doRNG (>= 1.8.6)
LinkingTo: Rcpp
Depends: R (>= 3.5.0)
LazyData: true
RoxygenNote: 7.3.0
Encoding: UTF-8
NeedsCompilation: yes
Packaged: 2024-02-27 22:56:55 UTC; kaife
Author: Kaifeng Lu [aut, cre] (<https://orcid.org/0000-0002-6160-7119>)
Maintainer: Kaifeng Lu <kaifenglu@gmail.com>
Repository: CRAN
Date/Publication: 2024-02-28 01:20:02 UTC
Built: R 4.6.0; aarch64-apple-darwin23; 2026-04-25 13:40:12 UTC; unix
Archs: drugDemand.so.dSYM
