{"coeffs": [-1.0084111104311707e-06, -1.4605485326606594e-08, -0.25195968015871706, 0.08342212156573295], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.897990257640137e-08, 1.6439373366366432e-08, 0.010982495671018746, 0.00948127684439971], "covariance": [[1.5194328048657424e-15, -1.91925482914069e-16, 3.1877975103358723e-10, -2.7561951536775177e-10], [-1.9192548291406904e-16, 2.70252996678798e-16, 2.1331447764538006e-11, 8.323739283071365e-11], [3.187797510335872e-10, 2.1331447764538012e-11, 0.00012061521116394548, -4.5914294678584534e-05], [-2.7561951536775187e-10, 8.323739283071364e-11, -4.5914294678584534e-05, 8.989461060015012e-05]]}