{"coeffs": [-1.9964425531660197e-07, 5.256094948091357e-09, -0.29802667384091824, 0.009342333631307133], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.4518387878009904e-08, 1.3837923417448224e-08, 0.01805556069269465, 0.026214343567892213], "covariance": [[6.01151344136543e-16, -1.0884381267871742e-17, 1.7879964474782129e-10, -2.4332852635863637e-10], [-1.0884381267871742e-17, 1.9148812450716193e-16, 6.0319304660893225e-12, 3.48389412280037e-11], [1.7879964474782129e-10, 6.031930466089314e-12, 0.00032600327192758007, -0.0003730545591138817], [-2.4332852635863637e-10, 3.4838941228003685e-11, -0.0003730545591138817, 0.000687191808695492]]}