GC                      Calculate G and C content of nucleotide
                        sequences
TmCalculator-package    Melting Temperature of Nucleic Acid Sequences
Tm_GC                   Calculate the melting temperature using
                        empirical formulas based on GC content
Tm_NN                   Calculate melting temperature using nearest
                        neighbor thermodynamics
Tm_Wallace              Calculate the melting temperature using the
                        'Wallace rule'
c2s                     convert a vector of characters into a string
check_filter            Check and filter valid base of nucleotide
                        sequences
chem_correction         Correct melting temperature with chemical
                        substances
complement              reverse complement and complement base of
                        nucleotide sequences
s2c                     convert a string into a vector of characters
salt_correction         Calculate the corrected melting temperature
                        with salt ions
