{"coeffs": [2.7344447900694357e-08, 1.2561470131522351e-05, 0.6346546112694834, 0.094583098030171], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.818861382076603e-08, 1.2982048485422533e-06, 0.01973776000187364, 0.006336948329042195], "covariance": [[2.3221425019669224e-15, -3.26727908100239e-14, -4.771477089529263e-10, -2.0413516744599895e-10], [-3.267279081002381e-14, 1.6853358287786145e-12, 2.5513156712884867e-08, 7.667490012755349e-09], [-4.771477089529256e-10, 2.5513156712884873e-08, 0.0003895791698915629, 0.00011729645114540914], [-2.0413516744599895e-10, 7.667490012755354e-09, 0.00011729645114540918, 4.015691412495066e-05]]}