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kotlinlang

For CM it wraps only no-derivs algorithms  <https://github.com/altavir/dataforge-old/blob/master/dataforge-stat/src/main/java/hep/dataforge/stat/fit/CMFitEngine.java|https://github.com/altavir/dataforge-old/blob/master/dataforge-stat/src/main/java/hep/dataforge/stat/fit/CMFitEngine.java> since I've used my own implementations for advanced things.

<https://github.com/altavir/dataforge-old/blob/master/dataforge-stat/src/main/java/hep/dataforge/stat/fit/Hessian.java|https://github.com/altavir/dataforge-old/blob/master/dataforge-stat/src/main/java/hep/dataforge/stat/fit/Hessian.java>

Here is error estimator with inversed hessian matrix (the same as in Python)

I have to read about the maths behind that, I've been using that stuff blindly for years…