{"coeffs": [-8.257811590650221e-07, -2.4057570329241423e-08, -0.0895425791343742, 0.040821803160571976], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.0545802102227848e-07, 1.0659053914289877e-07, 0.04240695181637176, 0.036964058291658365], "covariance": [[1.1121394197935328e-14, -9.794967973866261e-16, 1.5488317945011966e-09, -1.4328247104580131e-09], [-9.794967973866265e-16, 1.1361543034773836e-14, 1.5863243038719054e-09, 1.4618961544604833e-09], [1.548831794501196e-09, 1.5863243038719058e-09, 0.0017983495623560759, 4.992472766354598e-06], [-1.4328247104580131e-09, 1.4618961544604833e-09, 4.992472766354598e-06, 0.0013663416053891174]]}