Misc functions for training and plotting classification and regression models.
copied from cf-post-staging / r-caretconda install conda-forge::r-caretconda install conda-forge/label/broken::r-caretconda install conda-forge/label/cf201901::r-caretconda install conda-forge/label/cf202003::r-caretconda install conda-forge/label/gcc7::r-caret