{"coeffs": [-5.980169094614888e-07, -7.895674025707573e-09, -0.28050250921716874, 0.03619387349078595], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.4183375541225383e-08, 1.2635803160888508e-08, 0.008618688808981102, 0.0074454651406047], "covariance": [[5.84835652567938e-16, -2.6857521374694205e-17, 1.0258466265546543e-10, -8.648633970085389e-11], [-2.68575213746942e-17, 1.5966352152072e-16, 2.4457849891441115e-11, 2.657222958810922e-11], [1.0258466265546543e-10, 2.4457849891441115e-11, 7.42817967860561e-05, -1.0998840862819287e-05], [-8.648633970085386e-11, 2.657222958810922e-11, -1.0998840862819287e-05, 5.5434951159959766e-05]]}