ggplot2 (>= 2.1.0), sandwich (>= 2.3-4), Lmoments (>= 1.2-3),
doParallel (>= 1.0.10), foreach (>= 1.4.3), mgcv(>= 1.8-16),
lfe (>= 2.6-2291), gridExtra, grid, ggplotify,
RColorBrewer,pcse, gtable, MASS, mvtnorm, pROC, ModelMetrics,
Rcpp, lmtest, AER, future