{"coeffs": [-3.485210416792582e-07, 4.040982010738866e-09, -0.3422834003423986, 0.062036255952743605], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [9.35890327772696e-08, 2.360593736750709e-08, 0.05335823253360713, 0.04103069563993245], "covariance": [[8.758907056184843e-15, -4.912522604254053e-16, 4.119111374910856e-09, -2.9241306087191596e-09], [-4.912522604254051e-16, 5.572402789986676e-16, 4.660498351215111e-11, 3.8723512403446976e-10], [4.119111374910856e-09, 4.660498351215111e-11, 0.00284710097911049, -0.0012650516434832915], [-2.9241306087191596e-09, 3.872351240344697e-10, -0.0012650516434832915, 0.0016835179846967723]]}