[jmgirard]

Fixes #1284

The example from the issue now gives:

set.seed(1)
bootstrap_parameters(m, iterations = 20)
#> # Fixed Effects
#>
#> Parameter   | Coefficient |        95% CI |      p
#> --------------------------------------------------
#> (Intercept) |       -0.03 | [-0.38, 0.34] | 0.900
#> minedno     |        1.24 | [ 0.89, 1.66] | < .001
#>
#> # Zero-Inflation
#>
#> Parameter   | Coefficient |         95% CI |      p
#> ---------------------------------------------------
#> (Intercept) |        0.98 | [ 0.81,  1.42] | < .001
#> minedno     |       -1.63 | [-2.01, -1.39] | < .001

bootstrap_model() now names the zero-inflation columns <name>_zi, as simulate_model() does. With bootstrap = TRUE, model_parameters() now respects component, no longer adds the dispersion row with Wald intervals (component = "dispersion" gives an error), and the footer says the intervals are bootstrapped.

Still open: ci() and p_value() with method = "boot" return Wald values for glmmTMB, and the bootstrap path ignores p_adjust and ci_method, as before.

[Copilot]

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Copilot review overview

2 open issues

• if (component == "dispersion") and if (component == "conditional") will throw “argument is of… · New
• This unconditionally overwrites any user-supplied ci_method when bootstrap = TRUE. If the… · New

1 file not reviewed

• man/model_parameters.glmmTMB.Rd: Generated file

What changed in this PR

Fixes bootstrap output for glmmTMB models so zero-inflation (ZI) parameters are correctly named and surfaced as a distinct component, aligning bootstrap behavior with non-bootstrap output.

Changes:

• Name ZI bootstrap draw columns as <name>_zi in bootstrap_model() and map them back to standard parameter names + Component in bootstrap summaries.
• Update model_parameters.glmmTMB() bootstrap path to filter by component, drop dispersion rows for bootstrap, and adjust footer/attributes for bootstrap intervals.
• Add tests covering column naming, component handling, printing, and matching of draws to the correct parameters.

File	Description
tests/​testthat/​test-bootstrap_parameters.R	Adds regression tests for ZI naming/component behavior and bootstrap printing/footer expectations.
R/​methods_glmmTMB.R	Adjusts bootstrap handling for component, removes dispersion row for bootstrap, and sets bootstrap CI metadata.
R/​bootstrap_parameters.R	Adds helper to restore ZI parameter names and attach Component for bootstrapped glmmTMB parameters.
R/​bootstrap_model.R	Names ZI draw columns with _zi suffix to avoid NA column names and missing estimates.
NEWS.md	Documents the fix and behavior changes for bootstrap + components/dispersion/footer.
DESCRIPTION	Bumps package version.

_{Review effort: Lite}

[jmgirard]

#1287 (review)

• R/methods_glmmTMB.R:283, component of NULL: rejected. insight::validate_argument() turns NULL into "all" before these lines.
• R/methods_glmmTMB.R:370, ci_method overwritten: left for a follow-up. The bootstrap path ignored ci_method before this PR as well.