{"coeffs": [-2.3288120334623647e-07, -1.5238012121191033e-08, -0.2760966638121584, 0.01697374121172636], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.700386892916249e-08, 2.2909075196684797e-08, 0.02833295266085603, 0.02224691424562999], "covariance": [[1.3692863157266368e-15, -2.1086268086304192e-17, 3.4700784135028546e-10, -2.443367450921318e-10], [-2.1086268086304192e-17, 5.248257263673586e-16, 1.173517200114787e-10, 8.354910072873949e-11], [3.470078413502854e-10, 1.173517200114787e-10, 0.0008027562064823089, -8.315748333768783e-05], [-2.443367450921318e-10, 8.354910072873949e-11, -8.315748333768783e-05, 0.0004949251934524147]]}