The Elementary class
- class pylife.materialdata.woehler.Elementary(fatigue_data)[source]
Base class to analyze SN-data.
The common base class for all SN-data analyzers calculates the first estimation of a Wöhler curve in the finite zone of the SN-data. It calculates the slope k, the fatigue limit SD, the transition cycle number ND and the scatter in load direction 1/TN.
The result is just meant to be a first guess. Derived classes are supposed to use those first guesses as starting points for their specific analysis. For that they should implement the method _specific_analysis().
- analyze(**kwargs)[source]
Analyze the SN-data.
- Parameters:
**kwargs (kwargs arguments) – Arguments to be passed to the derived class
- bayesian_information_criterion()[source]
The Bayesian Information Criterion
Bayesian Information Criterion is a criterion for model selection among a finite set of models; the model with the lowest BIC is preferred. https://www.statisticshowto.datasciencecentral.com/bayesian-information-criterion/
Basically the lower the better the fit.