{"coeffs": [-1.0194629096133266e-07, -5.334527475926938e-09, -0.12052066564335219, 0.04608117105323214], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.464042554460823e-08, 3.150159276397437e-08, 0.11528409973857326, 0.10082261806172903], "covariance": [[1.1999590819115465e-15, -1.146347860641592e-16, 1.5526612841820562e-09, -1.456304435994351e-09], [-1.146347860641592e-16, 9.923503466672824e-16, 1.2565235925543126e-09, 1.2281344353997592e-09], [1.5526612841820564e-09, 1.2565235925543124e-09, 0.013290423652533308, -0.00032282075204393936], [-1.4563044359943514e-09, 1.2281344353997594e-09, -0.0003228207520439394, 0.010165200312821287]]}