Diagnostic Tools for Hierarchical (Multilevel) Linear Models R package HLMdiag version 0.5.1 CRAN Task View: MixedModels (https://CRAN.R-project.org/view=MixedModels) A suite of diagnostic tools for hierarchical (multilevel) linear models. The tools include not only leverage and traditional deletion diagnostics (Cook's distance, covratio, covtrace, and MDFFITS) but also convenience functions and graphics for residual analysis. Models can be fit using either lmer in the 'lme4' package or lme in the 'nlme' package. Software Depends: R (>= 3.5.0) Imports: ggplot2 (>= 0.9.2), stats, methods, plyr, reshape2, MASS, Matrix, mgcv, dplyr, magrittr, stringr, purrr, tibble, tidyselect, janitor, Rcpp, rlang, ggrepel, diagonals LinkingTo: Rcpp, RcppArmadillo Suggests: mlmRev, WWGbook, lme4 (>= 1.0), nlme, testthat, knitr, rmarkdown, car, gridExtra, qqplotr Adam Loy <loyad01@gmail.com> Comprehensive R Archive Network (CRAN) Adam Loy [cre, aut], Jaylin Lowe [aut], Jack Moran [aut] GPL-2 2025-05-12 application/tgz https://CRAN.R-project.org/package=HLMdiag doi:10.32614/CRAN.package.HLMdiag