Package: logitr
Title: Logit Models w/Preference & WTP Space Utility Parameterizations
Version: 1.2.0
Authors@R: c(
    person(given   = "John",
           family  = "Helveston",
           role    = c("aut", "cre", "cph"),
           email   = "john.helveston@gmail.com",
           comment = c(ORCID = "0000-0002-2657-9191")),
    person(given   = "Connor",
           family  = "Forsythe",
           role    = "ctb",
           email   = "cforsyth@andrew.cmu.edu"))
Description: Fast estimation of multinomial logit (MNL) and mixed logit
        (MXL) models. Models can be estimated using preference space or
        willingness-to-pay (WTP) space utility parameterizations.
        Weighted models can also be estimated. An option is available
        to run a parallelized multistart optimization loop with random
        starting points in each iteration, which is useful for
        non-convex problems like MXL models or models with WTP space
        utility parameterizations. The main optimization loop uses the
        'nloptr' package to minimize the negative log-likelihood
        function. Additional functions are available for computing and
        comparing WTP from both preference space and WTP space models
        and for predicting expected choices and choice probabilities
        for sets of alternatives based on an estimated model. Mixed
        logit models can include uncorrelated or correlated
        heterogeneity covariances and are estimated using maximum
        simulated likelihood based on the algorithms in Train (2009)
        <doi:10.1017/CBO9780511805271>. More details can be found in
        Helveston (2023) <doi:10.18637/jss.v105.i10>.
License: MIT + file LICENSE
Encoding: UTF-8
LazyData: true
Roxygen: list(markdown = TRUE)
RoxygenNote: 7.3.2
VignetteBuilder: knitr
Depends: R (>= 3.5.0)
Suggests: apollo, broom, broom.helpers (>= 1.15.0), dplyr, fastDummies,
        ggplot2, ggrepel, gmnl, gtsummary (>= 2.0.0), here, kableExtra,
        knitr, mixl, mlogit, rmarkdown, testthat, texreg, tidyr
Imports: generics, MASS, mirai, nloptr, parallel, randtoolbox, Rcpp,
        RcppParallel, stats, tibble
LinkingTo: Rcpp, RcppParallel
SystemRequirements: GNU make
URL: https://github.com/jhelvy/logitr, https://jhelvy.github.io/logitr/
BugReports: https://github.com/jhelvy/logitr/issues
Config/pak/sysreqs: cmake make
Repository: https://jhelvy.r-universe.dev
Date/Publication: 2026-07-10 17:53:02 UTC
RemoteUrl: https://github.com/jhelvy/logitr
RemoteRef: HEAD
RemoteSha: e375a1d39015a4d1a7a1ea28f0942c44a4613b10
NeedsCompilation: yes
Packaged: 2026-07-10 18:38:17 UTC; root
Author: John Helveston [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0002-2657-9191>),
  Connor Forsythe [ctb]
Maintainer: John Helveston <john.helveston@gmail.com>