{"coeffs": [-1.9363774878822942e-07, 1.4675604343474886e-05, 0.5354719816693649, 0.11174065696378088], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.4418584198632537e-07, 9.966245817535083e-07, 0.016370652876177266, 0.00920305476246295], "covariance": [[2.0789557029305586e-14, -8.57547708177834e-14, -1.123005692829207e-09, -1.0171414826947574e-09], [-8.575477081778334e-14, 9.932605569553553e-13, 1.5949178588737516e-08, 8.383829742642859e-09], [-1.1230056928292063e-09, 1.5949178588737516e-08, 0.000267998275592291, 0.00013066446413428445], [-1.017141482694757e-09, 8.383829742642859e-09, 0.00013066446413428445, 8.469621696089199e-05]]}