CitrobacterRKImetadata
                        Metadata of mass spectra corresponding to the
                        bacterial species _Citrobacter_ sp. from The
                        Robert Koch-Institute (RKI) database of
                        microbial MALDI-TOF mass spectra
CitrobacterRKIspectra   Mass spectra corresponding to the bacterial
                        species _Citrobacter_ sp. from The Robert
                        Koch-Institute (RKI) database of microbial
                        MALDI-TOF mass spectra
LogReg                  Fast supervised classifier with m/z subsetting
                        and optional sampling
LogReg_rf_fast          Fast random-forest classifier with stratified
                        CV and in-fold sampling (ranger, caret-free)
MSclassifR              Automated classification of mass spectra
PeakDetection           Detection of peaks in MassSpectrum objects
PlotSpectra             Plot spectral data with optional peak markers
PredictFastClass        Fast class prediction from peak lists using
                        linear regressions
PredictLogReg           Prediction of the category to which a mass
                        spectrum belongs
SelectionVar            Variable selection using methods based on
                        random forests and others.
SelectionVarStat        Fast feature (m/z) selection using multiple
                        hypothesis testing (LIMMA/ANOVA/Kruskal) with
                        optional class balancing (no/up/down/SMOTE)
SignalProcessing        Signal processing for MALDI-TOF spectra
                        (wrapper to SignalProcessingUltra)
SignalProcessingUltra   Optimized signal processing for MALDI-TOF
                        spectra (parallel + optional C++ alignment)
build_XY_from_peaks     Build design matrix X and response Y from peak
                        intensities
build_X_from_peaks_fast
                        Build a sample-by-m/z intensity matrix from a
                        list of peaks (fast, C++-backed)
calculate_distance      Function calculating the distance between two
                        vectors.
d_left_join             Function joining two tables based not on exact
                        matches
fast_cvpvi              Fast cross-validated permutation variable
                        importance (ranger-based)
fast_find_neighbors     Function finding k Nearest Neighbors for each
                        row of a matrix
fast_generate_synthetic
                        Function generating synthetic examples using
                        SMOTE
fast_mda                Fast MDA-style variable selection using ranger
                        permutation importance
smote_classif           SMOTE for classification datasets
