{"coeffs": [-9.060190968028305e-07, -3.235633361514749e-08, -0.261479401038019, 0.06615823091550779], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.207673824861136e-08, 3.741654216544786e-08, 0.024569687515994105, 0.02123246526033608], "covariance": [[6.736590961531063e-15, -6.513746557523621e-16, 1.3527031477992554e-09, -1.1714630649256463e-09], [-6.513746557523621e-16, 1.3999976276187373e-15, 1.7252327372008664e-10, 3.495712715199057e-10], [1.3527031477992556e-09, 1.7252327372008664e-10, 0.0006036695446335966, -0.00018199848685103052], [-1.1714630649256463e-09, 3.4957127151990574e-10, -0.00018199848685103052, 0.00045081758103137856]]}