{"coeffs": [5.069556951949324e-08, 1.1569979633071204e-06, 0.37917070670120084, 0.06981791094496544], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.161520657652063e-08, 2.41107981454809e-07, 0.03256103329092467, 0.01990247930081296], "covariance": [[1.731825418406486e-15, -6.579848972152781e-15, -7.057861758072658e-10, -6.728442597569993e-10], [-6.579848972152789e-15, 5.813305872121252e-14, 7.654732365187072e-09, 4.441188056550215e-09], [-7.057861758072665e-10, 7.654732365187072e-09, 0.0010602208889727046, 0.0005622933817001843], [-6.728442597569997e-10, 4.441188056550212e-09, 0.000562293381700184, 0.0003961086823192883]]}