MPdatabase              Database with Raman spectra of plastic polymers
                        and pigments
matrix_unknown          Matrix with 4 unknown Raman spectra of plastic
                        polymers
norm.SNV                Z-score normalisation
norm.min.max            Min-max normalisation
peak.finder             Peaks identification
region.remove           Removal of spectral region
savit.gol               Savitzky–Golay smoothing
single_unknown          Matrix with 1 unknown Raman spectra of plastic
                        polymer
spectra.alignment       Align spectra with different spectral
                        resolution
spectra.corr            Spectrum identification based on Pearson
                        correlation coefficient
spectra.corr.mat        Identification of multiple spectra
                        identification based on Pearson correlation
                        coefficient
spectra.dist            Spectrum identification based on Euclidean
                        distance
spectra.dist.mat        Identification of multiple spectra
                        identification based on Euclidean distance
