Stratum for Mac

Stratum is a native statistics and data-visualization application for macOS. It brings data import, a formula engine, 30+ chart types, inferential statistics, statistical process control, and machine learning into one app — with no scripting and no cloud, so data stays on the Mac.

Features

• Guided import for CSV, Excel, SPSS (.sav), Stata (.dta), and fixed-width text, with comfortable performance on datasets of several million rows
• A formula engine with 100+ functions, plus filtering, sorting, reshaping, and recoding
• 30+ chart types — histograms, box and violin plots, scatter, bubble and hexbin, Pareto, mosaic, treemap, contour, and parallel-coordinate — each with a full editor for titles, axes, colors, and annotations
• Descriptive statistics and correlation
• Two-sample and paired comparisons, one-way and two-way ANOVA, MANOVA, ANCOVA, and repeated-measures ANOVA, with post-hoc tests and assumption checks
• Contingency tables with chi-square, Cochran-Mantel-Haenszel, and correspondence analysis
• Linear, multiple, polynomial, logistic, and Poisson regression with full diagnostics
• Principal component analysis, clustering, and scale reliability
• Machine learning: decision trees, random forests, and boosted trees, with variable importance and partial-dependence views
• Statistical process control: the full family of Shewhart control charts (I-MR, X-bar R/S, p, np, c, u) plus CUSUM, EWMA, and process-capability analysis
• Formatted reports for every analysis, with export to PDF, image, Excel, and clipboard
• Available in 10 languages