{"coeffs": [-8.601342430082643e-07, -3.0649894121608215e-08, -0.26271045411743027, 0.05301662091526867], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.023675287556944e-08, 3.4297387333777396e-08, 0.020650275832905882, 0.01786323378600108], "covariance": [[4.933201454503812e-15, -3.665945671470855e-16, 8.681265402862127e-10, -7.50007494464341e-10], [-3.6659456714708545e-16, 1.176310777923154e-15, 1.5580725352578936e-10, 2.267162364614768e-10], [8.681265402862127e-10, 1.5580725352578936e-10, 0.0004264338919750967, -9.919792885430102e-05], [-7.500074944643409e-10, 2.267162364614768e-10, -9.919792885430102e-05, 0.00031909512129333045]]}