phia-package: Post-Hoc Interaction Analysis

phia-packageR Documentation

Post-Hoc Interaction Analysis

Description

Analysis of the expected values and other terms of in linear, generalized, and mixed linear models, on the basis of multiple comparisons of factor contrasts. Specially suited for the analysis of interaction effects.

Details

Package: phia
Type: Package
Version: 0.3-1
Date: 2024-01-03
License: GPL (>= 3)

This package contains functions that may be used for the post-hoc analysis of any term of linear models (univariate or multivariate), generalized and mixed linear models. The function testFactors provides a flexible user interface for defining combinations of factor levels and covariates, to evaluate and test the model, using the function linearHypothesis from package car. testInteractions uses this function for multiple comparisons of simple effects, interaction residuals, interaction contrasts, or user-defined contrasts. interactionMeans may be used to explore the ‘cell means’ of factorial designs, and plot main effects or first-order interactions.

Author(s)

Helios De Rosario-Martinez, with code contributions from John Fox (package car) and the R Core Team (stats package).

Maintainer: Helios De Rosario-Martinez <helios.derosario@gmail.com>


phia documentation built on May 29, 2024, 6:47 a.m.