parameters: p_value – R documentation

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p_value

p-values

Description

This function attempts to return, or compute, p-values of a model's parameters. See the documentation for your object's class:

Mixed models (lme4, nlme, glmmTMB, ...)
Bayesian models (rstanarm, brms, MCMCglmm, ...)
Zero-inflated models (hurdle, zeroinfl, zerocount, ...)
Marginal effects models (mfx)
Models with special components (DirichletRegModel, clm2, cgam, ...)

Usage

p_value(model, ...)

## Default S3 method:
p_value(model, method = NULL, verbose = TRUE, ...)

## S3 method for class 'emmGrid'
p_value(model, ci = 0.95, adjust = "none", ...)

Arguments

`model`	A statistical model.
`...`	Arguments passed down to `standard_error_robust()` when confidence intervals or p-values based on robust standard errors should be computed. Only available for models where `method = "robust"` is supported.
`method`	If `"robust"`, and if model is supported by the sandwich or clubSandwich packages, computes p-values based on robust covariance matrix estimation.
`verbose`	Toggle warnings and messages.
`ci`	Confidence Interval (CI) level. Default to 0.95 (95%).
`adjust`	Character value naming the method used to adjust p-values or confidence intervals. See `?emmeans::summary.emmGrid` for details.

Value

A data frame with at least two columns: the parameter names and the p-values. Depending on the model, may also include columns for model components etc.

Note

p_value_robust() resp. p_value(method = "robust") rely on the sandwich or clubSandwich package (the latter if vcov_estimation = "CR" for cluster-robust standard errors) and will thus only work for those models supported by those packages.

Examples

data(iris)
model <- lm(Petal.Length ~ Sepal.Length + Species, data = iris)
p_value(model)

parameters

Processing of Model Parameters

v0.13.0

GPL-3

Authors

Daniel Lüdecke [aut, cre] (<https://orcid.org/0000-0002-8895-3206>, @strengejacke), Dominique Makowski [aut] (<https://orcid.org/0000-0001-5375-9967>), Mattan S. Ben-Shachar [aut] (<https://orcid.org/0000-0002-4287-4801>), Indrajeet Patil [aut] (<https://orcid.org/0000-0003-1995-6531>, @patilindrajeets), Søren Højsgaard [aut], Zen J. Lau [ctb], Vincent Arel-Bundock [ctb] (<https://orcid.org/0000-0003-1995-6531>, @vincentab), Jeffrey Girard [ctb] (<https://orcid.org/0000-0002-7359-3746>, @jeffreymgirard)

Initial release