{"coeffs": [-1.4497077136780621e-07, 1.1143775146214526e-09, -0.23501835302916352, 0.012601195009286937], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.5142686001920586e-08, 3.8807968438375723e-08, 0.0653244391497421, 0.04485121575498992], "covariance": [[3.0407158195064083e-15, -2.6074917494173193e-17, 1.0969709524643117e-09, -6.853294320577619e-10], [-2.607491749417322e-17, 1.5060584143139665e-15, 3.9262612986877596e-10, 2.0438235966216666e-10], [1.0969709524643117e-09, 3.9262612986877606e-10, 0.004267282350228359, -0.0009232568394943209], [-6.853294320577619e-10, 2.0438235966216655e-10, -0.0009232568394943209, 0.002011631554700656]]}