{"coeffs": [3.1385190194484424e-09, 5.187872197801264e-07, 1.052088246329864, 0.14312145942375853], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.3172787096145553e-09, 7.745610013287683e-08, 0.03911829662390839, 0.010442215340843412], "covariance": [[5.3697806180328985e-18, -1.2957047997882763e-16, -6.557128102898402e-11, -2.0535025713015317e-11], [-1.2957047997882797e-16, 5.999447447794243e-15, 3.0248275948649064e-09, 7.706277941109999e-10], [-6.557128102898429e-11, 3.0248275948649064e-09, 0.0015302411307560825, 0.0003924814377787986], [-2.053502571301534e-11, 7.706277941109989e-10, 0.00039248143777879805, 0.0001090398612245455]]}