We obtained the risk scores of patients with melanoma: risk score = (−0.379123977 × expression of IFNG) + (−0.662084468 × expression of DAPK2) + (0.342818269 × expression of ATG9B) + (0.406559238 × expression of PTK6) + (0.807218069 × expression of BIRC5) + (0.364523721 × expression of EGFR). The gene discussed is PTK6; the disease is melanoma.