| appearance_to_binary | Transform Amino Acid Appearance Probability into -1, 0, or 1 |
| count_aa | Count Amino Acids |
| extract_features_OHE | Extract One-Hot Encoded (OHE) Features from Peptide Sequences |
| extract_features_QSAR | Extract QSAR Features from Peptide Sequences |
| filter_residues | Filter Peptides by Residue Counts |
| increment | Increment Peptide Sequences |
| reduce_sequences | Reduce Peptide Sequences by One Residue |
| select_best_vs_worst | Select Best vs Worst Peptides |