{"coeffs": [-1.3464851611908682e-07, 3.966780669507601e-06, 0.46205735047072166, 0.07817638148950923], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.2007800688093821e-07, 3.516528804658349e-06, 0.12549076755519528, 0.03606461043885783], "covariance": [[1.4418727736498646e-14, -3.0725762813082024e-13, -1.08852783741394e-08, -3.6539208559422897e-09], [-3.0725762813081964e-13, 1.2365974833991877e-11, 4.405986778571958e-07, 1.2155048380751e-07], [-1.0885278374139392e-08, 4.405986778571958e-07, 0.01574793274159205, 0.0043582888826937715], [-3.6539208559422897e-09, 1.2155048380751005e-07, 0.004358288882693772, 0.0013006561261065732]]}