chron, e1071, expm, matrixStats, nnet, pracma, zoo
chron, e1071, expm, MASS, Matrix, matrixStats, nnet, pracma,
tcltk, zoo, Rcpp (>= 0.12.11)
chron, caret, e1071, expm, MASS, Matrix, matrixStats,
neuralnet, nnet, pracma, tcltk, zoo, Rcpp (>= 0.12.11)