MAJOR STATISTICAL ENGINE UPGRADE We have completely re-engineered the statistical backend to match the rigor of standard packages like R, SAS, and SPSS. NEW ALGORITHMS: - Logistic Regression via IRLS: We replaced Gradient Descent with Iteratively Reweighted Least Squares (Newton-Raphson). This ensures reliable convergence even on unscaled datasets. - High-Precision Probability: Implemented Log-Gamma functions to prevent factorial overflow, allowing you to analyze large datasets (N > 170) without errors. - Linear Algebra Upgrade: Now using LAPACK (SVD/LU Decomposition) for numerically stable Multiple Regression. NEW FEATURES: - Power Analysis: A new module for A Priori sample size estimation (G*Power style) for T-Tests. - Non-Parametric Suite: Added Friedman Test, Wilcoxon Signed-Rank, and Sign Test with exact rank handling. - Reliability Analysis: Added Cohen’s Kappa (Inter-rater reliability) and Bland-Altman plots (Method comparison). - Advanced Visualizations: New interactive 3D Scatter Plots, Parallel Coordinates, and Interaction Plots. IMPROVEMENTS: - Data Editor: Optimized async loading for large CSV/Excel files; eliminates UI freezing during import. - Smart Cleaning: Added "Listwise Deletion" to automatically handle missing values in multivariate models. - Visuals: Fixed layout rendering issues in the Analysis View.

MAJOR STATISTICAL ENGINE UPGRADE We have completely re-engineered the statistical backend to match the rigor of standard packages like R, SAS, and SPSS. NEW ALGORITHMS: - Logistic Regression via IRLS: We replaced Gradient Descent with Iteratively Reweighted Least Squares (Newton-Raphson). This ensures reliable convergence even on unscaled datasets. - High-Precision Probability: Implemented Log-Gamma functions to prevent factorial overflow, allowing you to analyze large datasets (N > 170) without errors. - Linear Algebra Upgrade: Now using LAPACK (SVD/LU Decomposition) for numerically stable Multiple Regression. NEW FEATURES: - Power Analysis: A new module for A Priori sample size estimation (G*Power style) for T-Tests. - Non-Parametric Suite: Added Friedman Test, Wilcoxon Signed-Rank, and Sign Test with exact rank handling. - Reliability Analysis: Added Cohen’s Kappa (Inter-rater reliability) and Bland-Altman plots (Method comparison). - Advanced Visualizations: New interactive 3D Scatter Plots, Parallel Coordinates, and Interaction Plots. IMPROVEMENTS: - Data Editor: Optimized async loading for large CSV/Excel files; eliminates UI freezing during import. - Smart Cleaning: Added "Listwise Deletion" to automatically handle missing values in multivariate models. - Visuals: Fixed layout rendering issues in the Analysis View.

Version 4.2.1 brings major enhancements to data management, reporting flexibility, and visualization clarity based on your feedback. New Features: Selective Report Export: You can now select specific items in your history to generate a focused PDF report, rather than exporting your entire timeline. Report Renaming: Right-click any saved analysis to rename it for better organization. Smart Data Cleaning: Added a "Delete All Empty Rows" option to the Data Editor toolbar, making it instant to clean up imported datasets. Improvements: Enhanced Data Editor: We consolidated the delete buttons into a single, unified "Delete" menu to reduce clutter and prevent accidental deletions. Clearer Box Plots: Box plots now feature an explicit text annotation for the Median value directly on the chart. Better Frequency Tables: Frequency distribution results are now formatted into a structured, multi-column table with aligned Count, Percent, and Cumulative % values. High-Fidelity PDF Engine: We overhauled the PDF generator. Charts now render at 4x resolution for crisp printing, and data tables are perfectly aligned using a new grid layout. Statistical Accuracy: Updated the Kurtosis calculation to use the standard Unbiased Estimator (G2) for consistency with major statistical software.

This major update introduces powerful new features and essential improvements based on user feedback: • New Two-Way ANOVA: Analyze the effects of two factors simultaneously with our newest statistical test. • Enhanced Data Editor: You can now right-click to Rename Columns and easily delete rows or columns. The grid layout has been polished for better alignment. • Improved Accuracy: Box Plots now use the standard Type 7 Quantile algorithm for precise statistical reporting. • Better Frequency Tables: Frequency Distribution now includes automatic numerical sorting, plus Percent and Cumulative Percent columns. • Smart PDF Export: We fixed the 'partial data' issue. Reports now support smart pagination, ensuring every row of your data is included in the PDF.

This major update improves usability and data handling: • New Two-Way ANOVA: Now you can analyze the effects of two factors simultaneously. • Enhanced Data Editor: Completely redesigned grid for perfect alignment. You can now right-click to delete rows and columns easily. • Smart PDF Export: We fixed the 'partial data' issue. PDF exports now support smart pagination, ensuring 100% of your data tables are included, no matter how long. • Reliability: Fixed an issue where saved reports could disappear after restarting the app."

New: Results auto-format into a table for “Key: Value” outputs New: Scrollable Results panel for long analyses Improved: PDF export now includes the entire results (multi-page when needed) Improved: Layout stays usable on big datasets; panes are scroll-friendly Fixed: Duplicate “Results” appearing in some tests Fixed: Build issues with table rows & text parsing Other: Performance and stability tweaks

Enhanced UI and Speed

What's New: This update introduces some great new features and improvements to make your analysis easier: • New Analysis Menu: We've reorganized the statistical tests into clear, logical categories like "Hypothesis Testing" and "Correlation & Regression" to help you find the right test faster. • Dark Mode Support: You can now switch between Light and Dark modes, or have the app follow your system's appearance setting. • General bug fixes and performance improvements.

Bug fixes and Added new tests

Introducing the All-New Data Editor & Enhanced Reporting! This major update, Version 3.0, overhauls the data management workflow and significantly enhances your reporting capabilities, making NovoNumeric more powerful and flexible than ever. New Features: Dedicated Data Editor Window: Your entire dataset can now be viewed and managed in a separate, dedicated window! This provides a focused workspace for editing cells, adding or deleting rows, and applying data transformations like filtering and normalization. Consolidated PDF Reports: The new Report screen now exports all your saved analyses into a single, beautifully formatted multi-page PDF document. Each analysis gets its own page, complete with its chart and a new descriptive title. Descriptive Report Titles: Exported reports no longer use generic titles like "Report Item 1". Each analysis is now automatically titled with the variables used (e.g., "ANOVA for 'Dosage'"). Advanced Visualizations: Explore your data in new dimensions with the added 3D Scatter Plot and Parallel Coordinates Plot. Undo/Redo in Data Editor: Made a mistake while editing your data? No problem! Full Undo and Redo support (Cmd+Z / Shift+Cmd+Z) is now available in the Data Editor grid. Improvements & Fixes: Fixed: An issue where charts were sometimes missing from exported multi-page PDF reports has been resolved. Improved: The user manual and in-app help have been completely updated to reflect all new features and provide more detailed guidance. Improved: General performance enhancements and minor UI refinements across the application for a smoother workflow.