{"coeffs": [-4.795484532285639e-07, 1.108622467396694e-08, -0.2929712520808518, 0.03750578739057976], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.494408958320765e-08, 2.7770668061362863e-08, 0.02349731546051941, 0.02028344669604873], "covariance": [[3.0188529801275478e-15, -1.4290940674298975e-16, 6.587291188552178e-10, -5.55336136762498e-10], [-1.4290940674298977e-16, 7.712100045743994e-16, 1.4423644312758913e-10, 1.6221389817465137e-10], [6.587291188552178e-10, 1.4423644312758915e-10, 0.0005521238338511644, -8.99257320466716e-05], [-5.55336136762498e-10, 1.6221389817465137e-10, -8.99257320466716e-05, 0.00041141820987145017]]}