{"coeffs": [-1.4165470886598563e-07, 0.21443424214297693, 2.2279123787153186, 0.14639316232716376], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.1644027277431785e-07, 25783.503237494813, 17637.739042625533, 0.08644023430295661], "covariance": [[1.3558337123757549e-14, -0.0027387958458159733, -0.0018735380112768337, -9.714904004988737e-09], [-0.002738795802174612, 664789039.1979054, 454762701.68275255, 2192.5544832349506], [-0.0018735379814921284, 454762701.68293476, 311089838.53575706, 1499.865129704142], [-9.714903924005275e-09, 2192.5544985807796, 1499.8651402059384, 0.007471914106350036]]}