MMINP.predict           Predict metabolites from new microbiome samples
                        using MMINP model.
MMINP.preprocess        Data Preprocessing function for MMINP
MMINP.train             Train MMINP model using paired microbial
                        features and metabolites data
MMINP_trained_model     (Data) A MMINP model
checkInputdata          Check if input data satisfies input conditions
compareFeatures         Compare features' abundance obtained by
                        prediction and measurement.
filterFeatures          Filter features of input table according to
                        prevalence and/or abundance
get_Components          Estimate components for O2-PLS method
get_cvo2mComponent      get components number from Cross-validate
                        procedure of O2PLS
print.mminp             Print function for MMINP.train
test_metab              (Data) Normalized metabolite abundances for
                        MMINP prediction
test_metag              (Data) Normalized gene family abundances for
                        MMINP prediction
train_metab             (Data) Normalized metabolite abundances for
                        MMINP training
train_metag             (Data) Normalized gene family abundances for
                        MMINP training
