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Insights on statistical process control, quality engineering, and data-driven manufacturing

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EntropyStat vs. Minitab: What Distribution-Free Analysis Actually Means

Minitab offers non-normal options. EntropyStat is distribution-free. Those aren’t the same thing. Offering a menu of distributions to choose from is distribution-flexible — not distribution-free. Here’s why that distinction determines whether your Cpk is correct.

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Mar 10, 2026·Alex Dyba

EGDF and ELDF Explained: Entropy-Based Analysis for Quality Engineers

What is EGDF? The Entropic Global Distribution Function skips distribution fitting entirely — learning your process shape from the data. Here’s how EGDF and ELDF work, when they outperform traditional methods, and why they produce reliable Cpk from small samples.

egdf eldf entropy-statistics assumption-free-statistics entropy-methods

Mar 3, 2026·Alex Dyba