{"coeffs": [8.270402869713279e-08, 4.671788864079412e-06, 0.904244720884019, 0.20099085159556307], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.0762446499630124e-07, 1.3208624674258683e-05, 0.8808571656014074, 0.12872172509778182], "covariance": [[1.158302546574007e-14, -1.201479721790303e-12, -8.15227590686156e-08, -1.2908473001748055e-08], [-1.2014797217902917e-12, 1.7446776578543533e-10, 1.1624691165482328e-05, 1.6514662998179656e-06], [-8.152275906861489e-08, 1.162469116548234e-05, 0.7759093461913451, 0.11109619167584078], [-1.2908473001748002e-08, 1.6514662998179742e-06, 0.11109619167584124, 0.01656928251214891]]}