# S3 method for multiPhylo
sort(x, decreasing = FALSE, na.last = NA, ...)# S3 method for phylo
==(e1, e2)
# S3 method for phylo
<(e1, e2)
# S3 method for phylo
>(e1, e2)
# S3 method for MixedBase
==(e1, e2)
# S3 method for MixedBase
<(e1, e2)
# S3 method for MixedBase
>(e1, e2)