{"coeffs": [-3.461327831906472e-07, 1.0798474990667638e-08, -0.3039175221098319, 0.023527509720410126], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.048585566544089e-08, 4.3669451001395e-08, 0.039001695053968145, 0.034334289198355905], "covariance": [[6.477972962198183e-15, -1.81674763415019e-16, 1.245097191553745e-09, -1.0466046973909176e-09], [-1.8167476341501895e-16, 1.9070209507632385e-15, 3.3743685023080526e-10, 3.2450189132043095e-10], [1.245097191553745e-09, 3.3743685023080526e-10, 0.0015211322170827235, -0.00015015548753182816], [-1.0466046973909176e-09, 3.2450189132043095e-10, -0.00015015548753182813, 0.001178843414756339]]}