Rcpp, transport, RSpectra, expm, Rsymphony, plot3D, imager,
grDevices, stats, graphics
Rcpp, transport, RSpectra, expm, plot3D, imager, grDevices,
stats, graphics, lpSolve
Rcpp, transport, RSpectra, expm, plot3D, imager, grDevices,
stats, graphics, lpSolve, Matrix