April 2026 — Delivered Context Effects Analysis enhancements for GLM in easystats/modelbased, enabling calculation of within- and between-group context effects with flexible options. Implemented via commit 6b5ef9706e729df93082575c3fa51ef2505ad61f. Key outcomes include added tests, fixed GLM-related issues, and updated documentation. The work strengthens model-based inference and provides more actionable insights for customers.

March 2026 monthly summary: Implemented nestedLogit support across two packages, improved GAM performance for random-effects models, and enhanced plotting options. Key outcomes include new get_predicted.nestedLogit() and Nested Logit modeling capabilities, a significant performance uplift for get_statistic.gam() on large GAMs with random effects, and clearer visuals due to updated plotting defaults. All changes are supported by tests and updated documentation, enabling faster adoption and more robust modeling of complex datasets. Business impact includes expanded nested-data modeling capabilities, reduced compute time for GAM workloads, and improved data visualization for clearer insights.

February 2026: Three-repo milestone delivering CRAN-ready releases, stronger stability, and clearer data visuals across insights, performance, and modelbased. Key outcomes include improved GLM/Cox diagnostics, robust dependency handling, API consistency, CRAN release prep, and enhanced visualization and slope analysis in modelbased.

January 2026 performance summary across easystats/insight, easystats/performance, and easystats/modelbased. Focused on delivering business value through dependency migration, performance optimizations, release readiness, and reliability improvements. Key outcomes include migration away from panelr in insight, speedups for is_empty_object on large dataframes, enhanced testing framework with CRAN-release readiness, and stability improvements in model checks and plotting. These changes reduce runtime, improve analytics reliability, and streamline deployment.

December 2025: Delivered key features and fixes across three repos, focused on reliability, docs consistency, and CRAN readiness. Highlights include convergence checking enhancements with inherited docs, lean model support in fixest with consistent data retrieval, TinyPlot UX improvements, and packaging hygiene including removal of remote dependencies and version bumps.

November 2025 monthly summary focusing on delivering robust data handling, packaging readiness, and improved model prediction workflows across three repos. Key business value includes increased reliability in data processing, CRAN compliance, structured versioned releases, and clearer documentation to accelerate adoption and maintenance.

October 2025: Delivered high-impact reliability, maintainability, and modeling capabilities across the EasyStats suite, with a clear emphasis on business value and scalable engineering practices. Key outcomes include stabilized CRAN compatibility, automated code hygiene, expanded modeling support, and enhanced survey data workflows across performance, modelbased, and insight repositories.

September 2025 performance summary for the Easystats projects. The month focused on delivering cross-package capabilities, strengthening compatibility, and expanding modeling workflows across two repositories, easystats/insight and easystats/modelbased. The work emphasized business value through more reliable analyses, easier interoperability with downstream tools, and improved reproducibility across analyses.

August 2025 focused on delivering features that improve modeling workflows, hardening reliability, and preparing CRAN releases across the easystats suite (modelbased, insight, and performance). Key technical outcomes include residuals workflow enhancements, expanded betareg support in grid-based tooling, extensive testing and documentation improvements, and packaging/CI refinements to accelerate release readiness. Together, these efforts improve user experience, result interpretability, and the efficiency of the release process across multiple repositories.

July 2025 performance summary: Across the easystats/insight, easystats/modelbased, and easystats/performance repositories, delivered high-impact features for model analysis, reporting, and release readiness; fixed key defects; and strengthened packaging, documentation, and user-facing displays. The work improved model analysis accuracy, reporting fidelity, and cross-tool compatibility, enabling faster decision-making and more reliable production deployments.

June 2025 was marked by significant cross-project enhancements to modeling capabilities, prediction, diagnostics, and CI robustness. Key user-facing features were shipped in EasyStats Insight, including SDM model support (sdmTMB) with new S3 methods and documentation, plus a 'pretty' range option for get_datagrid. Prediction tooling was broadened with Get_predicted across multiple model classes, including glmtoolbox glmee, brms mixtures, stanreg, and mixture-class predictions, with classification outputs and confidence intervals and corresponding documentation updates. In performance, the analytics suite was expanded with EFA/PCA support from the psych package, introduction of item_omega() using psych::omega() with S3 methods and tests, and extended outlier detection for Factor Analysis models. In modelbased, inequality-based comparisons were introduced with an 'inequality' option and related terminology refinements (renaming total to inequality_pairwise) along with documentation improvements. Finally, a reusable get_model utility enabling multi-element extraction of embedded model objects was added to improve model introspection and error handling. These changes broaden modeling coverage, improve accuracy and interpretability, and enhance CI/test coverage and maintainability.

May 2025 performance summary: Delivered cross-repo features that improve data presentation, reporting formats, robustness, and packaging readiness across easystats/insight, easystats/modelbased, and easystats/performance. Key features include a new TT backend for tabular data rendering, enhanced non-HTML table exports, and per-observation degrees of freedom in get_df, enabling more accurate inference. Additional performance improvements include Group Variation analysis enhancements with summary output, refactoring for maintainability, and comprehensive documentation updates. Packaging and release readiness were advanced with CRAN-prep work, tests, sample data, and docs updates. These efforts improve business analytics workflows through clearer data presentation, reproducible results, and smoother deployment pipelines. Notable commits span: backend tt and docs (65770853, 71906f30), TT backend support in modelbased (e7cca71f), non-HTML export enhancements (bb94d6ce), per-observation DF (d15749b8), Group Variation enhancements (c6dfdccf, e7239249, 0a161814, 663f3f4c), and CRAN/release readiness (71f084e2, 4c28abe8, 931ecde4).

April 2025 Monthly Summary: Overview: - Delivered substantial enhancements across modeling, reporting, and release readiness. Focused efforts on modelbased and insight, with consolidation of convergence logic in performance. Result: richer modeling capabilities, improved reliability, clearer API semantics, and preparation for CRAN release. 1) Key features delivered: - easystats/modelbased: Mixed-modeling enhancements with vignette draft; trend analysis; Wiener compatibility and Wiener prediction performance improvements; preserved Row column behavior for categorical/MV models; offset support in estimate_relation; rename refinements and general code tweaks; documentation wording improvements; model-based predictions preserved Row column; added ability to pass dpars to predict and expose offset as a term. - easystats/insight: BRMS parameter handling improvements (systematic capture for custom models, support for non-standard brms parameters, use original dpars names, updated print_parameters); multivariate modeling improvements (fix get_predicted for multivariate models; lnr model handling); display and formatting enhancements (display() improvements, matrix display/format_table row names); maintenance fixes and tests expansion; convergence utilities added (is_converged methods). - easystats/performance: Centralized convergence checking using insight::is_converged; dependency updates (CRAN datawizard); check_outliers metadata fix and other small maintenance updates; preparation for CRAN release. - Release readiness: CRAN release preparations and metadata updates (DESCRIPTION), changelog/news entries, and version bump. 2) Major bugs fixed: - API consistency: m1 -> model across the package to align terminology. - Multivariate BRMS fixes: ensure get_predicted/get_grouplevel includes correct dpars for ZOIB and multivariate setups. - Error messaging: standardized and clarified user-facing errors/information. - Computation correctness: fix weights calculation/handling; ensure predict() works inside estimate_slopes; fix ordering behavior in related operations; fix 'all' view exclusion of group levels. - Offsets and calculations: improved handling of offsets in estimation/workflows; offset argument support in estimate_relation and related functions; return offset as term. - Miscellaneous: minor code cleanups, suppressWarnings, and maintainer vs. author email consistency across commits. 3) Overall impact and accomplishments: - Enhanced modeling capabilities and reliability across major repos; improved user experience through clearer messages, better formatting, and consistent API naming; strengthened performance and convergence checks; improved test coverage and release-readiness; positioned for successful CRAN submission with updated metadata, docs, and changelog. 4) Technologies and skills demonstrated: - R, BRMS integration, Wiener process modeling, and mixed-modeling enhancements. - Software quality: API consistency, error handling, and documentation improvements. - Performance: speedups in prediction paths, faster parameters() execution, and centralized convergence logic. - Release engineering: CRAN-ready metadata, DESCRIPTION updates, and changelog/news maintenance.

March 2025 performance highlights across easystats repos (insight, modelbased, performance). Delivered business-value features, fixed critical issues, and strengthened release-readiness and quality controls.

February 2025 monthly summary focusing on business value and technical achievements across the Easystats projects. Key CRAN-release readiness work, data presentation improvements, and back-end robustness enhancements contributed to faster deployment, reliable reporting, and stronger modeling workflows. The month combined feature delivery, targeted bug fixes, testing improvements, and documentation upgrades across insight, modelbased, and performance packages.

January 2025 performance summary: Delivered significant business-value enhancements across easystats/insight, easystats/performance, and easystats/modelbased, including expanded modeling support, improved data interrogation and prediction workflows, API enhancements, and proactive CRAN readiness. Key achievements span across feature delivery, stability improvements, and release readiness, with stronger backend integration and improved developer UX.

December 2024 achieved stronger model diagnostics, expanded model support, and improved test coverage across easystats packages, delivering tangible business value through reliability and scale. Key features delivered: - easystats/performance: Enhanced guidance for Check Collinearity with Interaction and Polynomial Terms, with docs, tests, and compatibility fixes for orthogonal polynomials; GLMM/TMB robustness enhancements for check_collinearity and diagnostics, including zero-inflation configurations and datawizard compatibility; Beta-binomial R2 metrics support for glmmTMB models. - easystats/insight: Insight_aux type conversion enhancements (as.double), improved handling of null/NA/Inf values; improvements to brms Von Mises model handling; Mice compatibility fixes; test alignment and test suite version bumps; expanded test coverage and dependency updates. - easystats/modelbased: Snapshot testing support; removal of deprecated arguments; expanded testing and verbose mode enhancements; development groundwork and project structure refinements; marginal analysis enhancements (export of marginalmeans and initial marginal contrasts). Overall impact: - Improved accuracy and reliability of model diagnostics for complex specifications, enabling more informed business decisions with confidence in results. - Broader model compatibility (glmmTMB, brms, MICE, data_rename) and extended testing coverage reduce maintenance costs and speed up onboarding for users. - Documentation, CI-ready changes, and code quality improvements increase developer velocity and sustainability of the project. Technologies/skills demonstrated: - R, glmmTMB, brms, datawizard, MICE integration, and snapshot testing. - Test-driven development, extensive testing (unit, integration, and snapshot), CI readiness. - Documentation updates, linting, and code maintenance to support long-term reliability.

November 2024 performance highlights (easystats/insight and easystats/performance): Key features delivered - easystats/insight: Implemented term transformations access in formula; added Cox proportional hazards panel support; added support for panelr::asym(); adopted gt-functions for improved alignment; added descriptive metadata and expanded tests/outputs; svyanova dataset added for testing/examples; extensive documentation updates and clarifications; prepared for CRAN release. - easystats/performance: CI release readiness via version bump and CI triggers; enhanced model checking with restricted verbosity during collinearity checks; documentation updates and vignettes clarifying behavior and AUC in performance_roc; API consistency improvements by harmonizing plot aesthetic names. Major bugs fixed - easystats/insight: Fixed residual variance discrepancy between VarCorr() and get_variance_residual(); reduced perl = TRUE usage in regex where possible; enhanced format_bf() to add stars for lower BFs; fixed date-variable handling for compact-functions; resolved find_transformation() returning multiple values; partial Box-Cox handling issue; general small fixes across the codebase. - easystats/performance: outlier detection robustness - check_outliers now warns when there are no numeric predictors; improved check_predictions and formula handling; cleaned noisy output during checks. Overall impact and accomplishments - Substantial uplift in usability, reliability, and velocity: clearer documentation, consistent API and output formatting, and improved test coverage across both packages; readiness for CRAN release; reduced user friction and faster onboarding for new features; stronger data-checking and error-handling yielding more robust results in production scenarios. Technologies/skills demonstrated - R package development, CI/CD integration, test-driven development, documentation and vignette authoring, advanced formatting and alignment with gt-functions, panelr integration, CoxPH panel support, and CRAN release preparation.