{"coeffs": [-4.694775641066141e-07, 8.19171129399124e-06, 1.488079179119044, 0.4179309613460479], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.770351221341601e-07, 1.7543144376321013e-05, 1.3588160493919212, 0.29630804460663096], "covariance": [[2.275625077495531e-13, -8.046523647752958e-12, -6.25913418362018e-07, -1.3976581065818286e-07], [-8.04652364775248e-12, 3.077619146084436e-10, 2.3833595812493615e-05, 5.150760238342935e-06], [-6.259134183619834e-07, 2.3833595812493672e-05, 1.8463810560850682, 0.3998367898438496], [-1.3976581065817833e-07, 5.150760238343064e-06, 0.3998367898438588, 0.08779845729860519]]}