{"coeffs": [1.0576025299243505e-09, 0.0019843976396173107, 4.647862910549022, 0.4614753910924668], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.179404753596747e-07, 101.30406019633024, 23606.617766011652, 3.7453058053031376], "covariance": [[3.8185043108774066e-13, -6.202004736033793e-05, -0.014452543835424611, -2.308692181876757e-06], [-6.202004655164351e-05, 10262.5126122617, 2391446.2175994823, 378.5640127952599], [-0.014452543647172206, 2391446.217619989, 557272402.350577, 88216.30224438269], [-2.3086921667456e-06, 378.5640152268914, 88216.30281026289, 14.027315575237383]]}