This question may well be too open ended to get a definitive answer, but hopefully not. Machine learning algorithms, such as SVM, GBM, Random Forest etc, generally have some free parameters that, ...
I estimated the breakpoint for a piecewise linear model (one intercept, two slopes that meet at the breakpoint) by minimizing the deviance using an optimizer (optim ...
Suppose I have a multivariate predictive distribution (dimension N). The distribution cannot be described in closed form with a mu vector and associated covariance matrix. However, I can sample from ...