Package: ctreeMI
Title: Conditional Inference Trees with Stacked Multiple Imputation
Version: 1.0.1
Authors@R: person("Phillip", "Sherlock",
    email = "phillip.sherlock@ufl.edu",
    role = c("aut", "cre"),
    comment = c(ORCID = "0000-0003-0433-3681"))
Description: Implements the stacked-imputation workflow for conditional
    inference trees ('ctree') described in Sherlock et al. (2026)
    <doi:10.1080/00273171.2026.2661244>. When data contain missing values,
    multiply imputed datasets (e.g., from 'mice') are stacked vertically
    and a single 'ctree' is fit on the combined data. To correct for the
    artificially inflated sample size introduced by stacking, every
    node-level test statistic is divided by the number of imputations M,
    the node-level p-values are recomputed from the chi-squared reference
    distribution 'ctree' uses (including its multiplicity adjustment across
    candidate splitting variables), and the tree is compressed bottom-up
    (the Stack/M correction). Degrees of freedom are derived for each node
    and each candidate variable, so univariate, bivariate and
    higher-dimensional outcomes are all handled, as are unordered factor
    predictors, whose degrees of freedom depend on how many levels remain
    in a node. The result is a single interpretable tree that incorporates
    imputation uncertainty without requiring pooling of structurally
    different trees. Also exports stack_imputations(),
    rescale_statistic(), prune_stackM(), node_table() and
    report_ctreeMI() as standalone utilities. The underlying 'ctree'
    algorithm is provided by 'partykit' (Hothorn & Zeileis, 2015; Hothorn,
    Hornik & Zeileis, 2006 <doi:10.1198/106186006X133933>).
License: GPL (>= 3)
Encoding: UTF-8
RoxygenNote: 7.3.3
Imports: partykit (>= 1.2-0), mice (>= 3.0.0), stats, methods
Suggests: testthat (>= 3.0.0)
Config/testthat/edition: 3
Depends: R (>= 4.0.0)
URL: https://github.com/Phillip-Sherlock/ctreeMI
BugReports: https://github.com/Phillip-Sherlock/ctreeMI/issues
NeedsCompilation: no
Packaged: 2026-08-26 12:53:17 UTC; coe-phillip.sherlock
Author: Phillip Sherlock [aut, cre] (ORCID:
    <https://orcid.org/0000-0003-0433-3681>)
Maintainer: Phillip Sherlock <phillip.sherlock@ufl.edu>
Repository: CRAN
Date/Publication: 2026-08-26 13:10:02 UTC
Built: R 4.6.0; ; 2026-08-26 13:30:10 UTC; unix
