{"coeffs": [-1.4429027871248076e-07, -6.818176658189259e-09, -0.3588955544351089, 0.028279927790436633], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.8430073020705304e-08, 7.40082814235903e-09, 0.021069240728128085, 0.018007354079307963], "covariance": [[3.3966759154852956e-16, -1.007945335255075e-17, 2.034979988698599e-10, -1.6478769844352702e-10], [-1.007945335255074e-17, 5.477225719273341e-17, 2.7606397170116546e-11, 3.083910168983513e-11], [2.0349799886985992e-10, 2.7606397170116546e-11, 0.0004439129048598113, -8.296194508810605e-05], [-1.64787698443527e-10, 3.0839101689835135e-11, -8.296194508810602e-05, 0.0003242648009375691]]}