add_rarefaction_metrics
                        Calculate and append pre-rarefaction statistics
                        to microbiome data
bcse                    16S amplicon dataset from the GLBRC Biofuel
                        Cropping System Experiment (BCSE) at Michigan
                        State University, Kellogg Biological Station
bean                    16S amplicon dataset from common bean
                        (Phaseolus vulgaris)
fit_neutral_model       Fit a Neutral Model to Microbial Community Data
identify_core           Identify Core Microbiome Using Bray-Curtis
                        Similarity biological samples. Core taxa are
                        selected using either a "last % increase" or
                        "elbow" method implementing the method
                        developed by Shade and Stopnisek (2019) Curr
                        Opin Microbiol, see below for details.
mimulus                 16S amplicon dataset from yellow monkeyflower
                        (Mimulus guttatus)
multi_rarefy            Run rarefaction for microbiome count tables
plot_abundance_occupancy
                        Plot Abundance-Occupancy Curve and Display the
                        Core Taxa
plot_core_distribution
                        Plot Core Taxa Occupancy Across Metadata Groups
plot_identified_core    Plot Bray-Curtis increase over ranked OTU/ASVs
plot_neutral_model      Plot a fitted Neutral Model to Microbial
                        Community Data
plot_rarefaction_metrics
                        Plot pre-rarefaction diagnostics
plot_variance_propagation
                        Variance propagation diagnostic for rarefaction
sncm.fit                Fit Sloan Neutral Community Model (SNCM)
switchgrass             16S amplicon dataset from Switchgrass (Panicum
                        virgatum)
switchgrass_core        Identified core microbiome members for the
                        switchgrass dataset
update_otu_table        Add a rarefied otu_table to a phyloseq object
