{"coeffs": [-1.7168734606896146e-07, 1.8422814649899466e-09, -0.30252450183161994, 0.016770516357985897], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.916886130216896e-08, 2.153435090097559e-08, 0.03379586659906252, 0.029561399041154093], "covariance": [[1.5341996957085492e-15, -2.807313475034245e-17, 4.813508691014833e-10, -3.983700909028051e-10], [-2.8073134750342455e-17, 4.637282687263482e-16, 1.1502153861066977e-10, 1.0095282897663263e-10], [4.813508691014833e-10, 1.1502153861066979e-10, 0.0011421605991816298, -0.00020530846300128647], [-3.983700909028051e-10, 1.0095282897663261e-10, -0.00020530846300128647, 0.0008738763132703462]]}