{"coeffs": [-3.93299465613026e-07, -3.399067363076622e-08, -0.25508460317281945, 0.020296111973772187], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.790986181029081e-08, 2.4137252999892408e-08, 0.01868571742317588, 0.017075913403749424], "covariance": [[1.4371576224753452e-15, -3.9462103852588496e-17, 2.356276150650286e-10, -2.0856569374174004e-10], [-3.9462103852588496e-17, 5.82606982380815e-16, 8.932993750909075e-11, 8.558309344132411e-11], [2.3562761506502867e-10, 8.932993750909075e-11, 0.0003491560356187787, -2.4996957791999327e-05], [-2.085656937417401e-10, 8.558309344132411e-11, -2.4996957791999327e-05, 0.00029158681857234926]]}