graph_perm_test         Performs graph-based permutation tests
new_fortify.igraph      Fortify method for networks of class 'igraph'
phyloseqGraphTest-package
                        phyloseqGraphTest: Non-parametric graph-based
                        testing for microbiome data.
plot_permutations       Plots the permutation distribution
plot_test_network       Plots the graph used for testing
print.psgraphtest       Print psgraphtest objects
scale_safely            Rescale x to (0, 1), except if x is constant
