WhichDist for Excel
Which distribution fits your data?
A modern Microsoft Excel add-in for guided input analysis. Select a numeric range, answer a few questions, and WhichDist fits candidate distributions, ranks them with an AICc-led composite, and proves the recommendation with histogram, ECDF and Q–Q plots — fully offline.
Guided nature wizard
Answer questions about your data's nature and engineering discipline; WhichDist forms a candidate set with a clear Candidate Policy.
Rigorous ranking
AICc-led composite ranking with Anderson–Darling and Kolmogorov–Smirnov always shown. Best supported among candidates — never a claim of absolute truth.
Proof plots
Histogram with fitted PDF, empirical vs. fitted CDF, and Q–Q plots — ready for your lab report.
Offline & private
Free analysis runs entirely inside Excel. Your sample data is never uploaded.
Input analysis and descriptive statistics where your data already lives — a free, friendlier alternative to Arena Input Analyzer and similar tools, with nothing to export.
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