{"coeffs": [-3.6402682550725016e-07, -1.1183006399323838e-08, -0.3555773122110896, 0.03484241867145401], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.0265314081391792e-07, 3.6198527488504154e-08, 0.04749769076432302, 0.04026094733029018], "covariance": [[1.0537667318962061e-14, -3.815773931887825e-16, 2.9877791155538794e-09, -2.4019804713679543e-09], [-3.8157739318878237e-16, 1.3103333923359906e-15, 2.7582717091422925e-10, 3.8487000730152134e-10], [2.9877791155538786e-09, 2.758271709142292e-10, 0.002256030627943256, -0.0005926338991880253], [-2.401980471367954e-09, 3.8487000730152134e-10, -0.0005926338991880253, 0.0016209438799324003]]}