{"coeffs": [1.5634403049177062e-07, 8.347643656469301e-07, 0.5199805163651432, 0.06997745874653223], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.8489954146279015e-08, 2.388526281402258e-07, 0.06644187819505368, 0.045798606564817386], "covariance": [[2.351275653108241e-15, -4.121088348757799e-15, -4.322827521150858e-10, -1.2034632691499362e-09], [-4.121088348757794e-15, 5.705057796949299e-14, 1.4505799545950005e-08, 9.213240140374633e-09], [-4.3228275211508447e-10, 1.4505799545950005e-08, 0.004414523178086349, 0.0022037589041533885], [-1.2034632691499356e-09, 9.213240140374636e-09, 0.0022037589041533894, 0.0020975123632789344]]}