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Diagnostics and visualization tools for latent variable models fitted with 'lavaan' (Rosseel, 2012 <doi:10.18637/jss.v048.i02>). The package provides fast, parallel-safe factor-score prediction (lavPredict_parallel()), data augmentation with model predictions, residuals, delta-method standard errors and confidence intervals (augment()), and model-based latent grids for continuous, ordinal, or mixed indicators (prepare()). It offers item-level empirical versus model curve comparison using generalized additive models for both continuous and ordinal indicators (item_data(), item_plot()) via 'mgcv' (Wood, 2017, ISBN:9781498728331), residual diagnostics including residual correlation tables and plots (resid_cor(), resid_corrplot()) using 'corrplot' (Wei and Simko, 2021 <https://github.com/taiyun/corrplot>), and Q–Q checks of residual z-statistics (resid_qq()), optionally with non-overlapping labels from 'ggrepel' (Slowikowski, 2024 <https://CRAN.R-project.org/package=ggrepel>). Heavy computations are parallelized via 'future'/'furrr' (Bengtsson, 2021 <doi:10.32614/RJ-2021-048>; Vaughan and Dancho, 2018 <https://CRAN.R-project.org/package=furrr>). Methods build on established literature and packages listed above.
| Version: | 0.1.0 |
| Depends: | R (≥ 4.1.0) |
| Imports: | corrplot (≥ 0.90), dplyr, furrr, future, future.apply, ggplot2, ggrepel, igraph, lavaan, mgcv, purrr, rlang, stringr, tibble, tidyselect, tidyr, vctrs, visNetwork, withr |
| Suggests: | spelling, testthat (≥ 3.0.0) |
| Published: | 2026-01-17 |
| DOI: | 10.32614/CRAN.package.lavDiag |
| Author: | Karel Rečka [aut, cre] |
| Maintainer: | Karel Rečka <reckak at mail.muni.cz> |
| BugReports: | https://github.com/reckak/lavDiag/issues |
| License: | MIT + file LICENSE |
| URL: | https://github.com/reckak/lavDiag |
| NeedsCompilation: | no |
| Language: | en-US |
| Citation: | lavDiag citation info |
| Materials: | README, NEWS |
| CRAN checks: | lavDiag results |
| Reference manual: | lavDiag.html , lavDiag.pdf |
| Package source: | lavDiag_0.1.0.tar.gz |
| Windows binaries: | r-devel: not available, r-release: not available, r-oldrel: lavDiag_0.1.0.zip |
| macOS binaries: | r-release (arm64): lavDiag_0.1.0.tgz, r-oldrel (arm64): lavDiag_0.1.0.tgz, r-release (x86_64): lavDiag_0.1.0.tgz, r-oldrel (x86_64): lavDiag_0.1.0.tgz |
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