{"coeffs": [-5.397512854915585e-07, -8.291317229180515e-09, -0.28522899226755194, 0.06507033129397588], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.980884928259987e-08, 3.0082220216726305e-08, 0.035924242522084045, 0.03014682478720053], "covariance": [[6.369452423812742e-15, -5.190373055283882e-16, 2.082971203158701e-09, -1.6939320923289011e-09], [-5.190373055283886e-16, 9.04939973167617e-16, 1.4641072875452636e-10, 3.859662162153568e-10], [2.082971203158701e-09, 1.4641072875452654e-10, 0.0012905512007855113, -0.0004644726471422553], [-1.693932092328901e-09, 3.8596621621535673e-10, -0.0004644726471422553, 0.0009088310447501683]]}