Package: multpois
Title: Analyze Nominal Response Data with the Multinomial-Poisson Trick
Version: 0.3.3
Authors@R: 
    person("Jacob O.", "Wobbrock", , "wobbrock@uw.edu", role = c("aut", "cre","cph"),
           comment = c(ORCID = "0000-0003-3675-5491"))
Maintainer: Jacob O. Wobbrock <wobbrock@uw.edu>
Description: Dichotomous responses having two categories can be
        analyzed with stats::glm() or lme4::glmer() using the
        family=binomial option. Unfortunately, polytomous responses
        with three or more unordered categories cannot be analyzed
        similarly because there is no analogous family=multinomial
        option. For between-subjects data, nnet::multinom() can address
        this need, but it cannot handle random factors and therefore
        cannot handle repeated measures. To address this gap, we
        transform nominal response data into counts for each
        categorical alternative. These counts are then analyzed using
        (mixed) Poisson regression as per Baker (1994)
        <doi:10.2307/2348134>. Omnibus analyses of variance can be run
        along with post hoc pairwise comparisons. For users wishing to
        analyze nominal responses from surveys or experiments, the
        functions in this package essentially act as though
        stats::glm() or lme4::glmer() provide a family=multinomial
        option.
License: GPL (>= 2)
URL: https://github.com/wobbrock/multpois/
BugReports: https://github.com/wobbrock/multpois/issues
Depends: R (>= 3.5)
Imports: car (>= 3.1.2), dfidx (>= 0.0.5), dplyr (>= 1.1.4), lme4 (>=
        1.1.35.5), plyr (>= 1.8.9)
Suggests: emmeans (>= 1.10.3), knitr (>= 1.48), lmerTest (>= 3.1.3),
        nnet (>= 7.3.19), rmarkdown, spelling, testthat (>= 3.2.1.1)
VignetteBuilder: knitr
Encoding: UTF-8
Language: en-US
LazyData: true
Roxygen: list(markdown = TRUE)
RoxygenNote: 7.3.2
Config/testthat/edition: 3
Config/pak/sysreqs: cmake make libicu-dev
Repository: https://wobbrock.r-universe.dev
Date/Publication: 2025-02-09 20:50:43 UTC
RemoteUrl: https://github.com/wobbrock/multpois
RemoteRef: HEAD
RemoteSha: fc1864bfde208b4733f03e7472f39d86e5b06e4c
NeedsCompilation: no
Packaged: 2026-09-23 07:25:01 UTC; root
Author: Jacob O. Wobbrock [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0003-3675-5491>)