Description
Tools to visualize the results of a classification or a regression. The graphical displays include stacked plots, silhouette plots, quasi residual plots, class maps, predictions plots, and predictions correlation plots. Implements the techniques described and illustrated in Raymaekers J., Rousseeuw P.J., Hubert M. (2022). Class maps for visualizing classification results. \emph{Technometrics}, 64(2), 151–165. <doi:10.1080/00401706.2021.1927849> (open access), Raymaekers J., Rousseeuw P.J.(2022). Silhouettes and quasi residual plots for neural nets and tree-based classifiers. \emph{Journal of Computational and Graphical Statistics}, 31(4), 1332–1343. <doi:10.1080/10618600.2022.2050249>, and Rousseeuw, P.J. (2026). Explainable Linear and Generalized Linear Models by the Predictions Plot. The American Statistician, 80, 157-163, <doi:10.1080/00031305.2025.2539235> (open access), and Montalcini, C., Rousseeuw, P.J. (2025). The bixplot: A variation on the boxplot suited for bimodal data, <doi:10.48550/arXiv.2510.09276> (open access). Examples can be found in the vignettes: "Discriminant_analysis_examples","K_nearest_neighbors_examples", "Support_vector_machine_examples", "Rpart_examples", "Random_forest_examples", "Neural_net_examples", "predsplot_examples", and "bixplot_examples".
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CRAN Check Status
Show all 13 flavors
| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | OK |
| r-devel-linux-x86_64-debian-gcc | OK |
| r-devel-linux-x86_64-fedora-clang | OK |
| r-devel-linux-x86_64-fedora-gcc | ERROR |
| r-devel-windows-x86_64 | OK |
| r-oldrel-macos-arm64 | OK |
| r-oldrel-macos-x86_64 | OK |
| r-oldrel-windows-x86_64 | OK |
| r-patched-linux-x86_64 | OK |
| r-release-linux-x86_64 | OK |
| r-release-macos-arm64 | OK |
| r-release-macos-x86_64 | OK |
| r-release-windows-x86_64 | OK |
Check details (1 non-OK)
re-building of vignette outputs
Error(s) in re-building vignettes:
--- re-building ‘Discriminant_analysis_examples.Rmd’ using rmarkdown
Quitting from Discriminant_analysis_examples.Rmd:387-399 [unnamed-chunk-35]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `load()`:
! cannot open the connection to 'https://wis.kuleuven.be/statdatascience/robust/data/mnist-rdata'
---
Backtrace:
▆
1. └─base::load(mnist_url)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Error: processing vignette 'Discriminant_analysis_examples.Rmd' failed with diagnostics:
cannot open the connection to 'https://wis.kuleuven.be/statdatascience/robust/data/mnist-rdata'
--- failed re-building ‘Discriminant_analysis_examples.Rmd’
--- re-building ‘K_nearest_neighbors_examples.Rmd’ using rmarkdown
--- finished re-building ‘K_nearest_neighbors_examples.Rmd’
--- re-building ‘Neural_net_examples.Rmd’ using rmarkdown
--- finished re-building ‘Neural_net_examples.Rmd’
--- re-building ‘Random_forest_examples.Rmd’ using rmarkdown
--- finished re-building ‘Random_forest_examples.Rmd’
--- re-building ‘Rpart_examples.Rmd’ using rmarkdown
--- finished re-building ‘Rpart_examples.Rmd’
--- re-building ‘Support_vector_machine_examples.Rmd’ using rmarkdown
--- finished re-building ‘Support_vector_machine_examples.Rmd’
--- re-building ‘bixplot_examples.Rmd’ using rmarkdown
--- finished re-building ‘bixplot_examples.Rmd’
--- re-building ‘predsplot_examples.Rmd’ using rmarkdown
--- finished re-building ‘predsplot_examples.Rmd’
SUMMARY: processing the following file failed:
‘Discriminant_analysis_examples.Rmd’
Error: Vignette re-building failed.
Execution halted
Check History
ERROR 12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Jun 27, 2026
re-building of vignette outputs
Error(s) in re-building vignettes: --- re-building ‘Discriminant_analysis_examples.Rmd’ using rmarkdown Quitting from Discriminant_analysis_examples.Rmd:387-399 [unnamed-chunk-35] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ...[truncated]... ’ --- re-building ‘predsplot_examples.Rmd’ using rmarkdown --- finished re-building ‘predsplot_examples.Rmd’ SUMMARY: processing the following file failed: ‘Discriminant_analysis_examples.Rmd’ Error: Vignette re-building failed. Execution halted
OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Jun 9, 2026
ERROR 12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Jun 8, 2026
for code/documentation mismatches
Warning in file(open = "w+") : cannot open file '/tmp/Rtmp8Bi23k/Rf371fc87e733f8c': No space left on device Error in file(open = "w+") : cannot open the connection Calls: <Anonymous> -> .load_package_quietly -> .try_quietly -> file Execution halted
OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE May 8, 2026
WARNING 12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE May 7, 2026
PDF version of manual
LaTeX errors when creating PDF version. This typically indicates Rd problems. LaTeX errors found:
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 11, 2026
ERROR 13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Mar 10, 2026
re-building of vignette outputs
Error(s) in re-building vignettes: --- re-building 'Discriminant_analysis_examples.Rmd' using rmarkdown Quitting from Discriminant_analysis_examples.Rmd:387-399 [unnamed-chunk-35] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ...[truncated]... ' --- re-building 'predsplot_examples.Rmd' using rmarkdown --- finished re-building 'predsplot_examples.Rmd' SUMMARY: processing the following file failed: 'Discriminant_analysis_examples.Rmd' Error: Vignette re-building failed. Execution halted