Steel

This dataset consists of the failure times for hardened steel specimens in a rolling contact fatigue test. Ten independent observations were
taken at each of the four values of contact stress. The response is the length of the time until each specimen of the hardened steel failed.

This package allows to fit a regression model suitable for data analysis in which the conditional distribution of the response is symmetric continuous and where its location and dispersion parameters are explicitly modelled through semi-parametric functions, whose non-parametric components are approximated by natural cubic splines or P-splines.  Supported distributions for the model error include normal, Student-t, power exponential, symmetric hyperbolic, contaminated normal, slash, sinh-normal and sinh-t distributions.

Steel: Hardened Steel

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