Rtropical 1.2.1

• Authors and links of reference papers added.
• Explanation of values added for these functions: as.matrix.multiPhylo, as.vector.phylo, plot.troppca, read.nexus.to.data.matrix, read.tree.to.data.matrix, troppca.obj.
• Replace \dontrun{} to \donttest{} for examples of troppca.polytope, troppca.linsp, troppca.linsp2polytope.
• on.exit() added to restore users’ plotting option in plot.troppca.
• Update in documentation of these functions: read.nexus.to.data.matrix, read.tree.to.data.matrix.

Rtropical 1.1.1

• Initial submission