{"coeffs": [-6.831956938195188e-07, -3.581556591508262e-08, -0.16935492915917194, 0.0380472820232121], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.4074236793476266e-08, 4.2401854538321795e-08, 0.02283677676786593, 0.019864099212388863], "covariance": [[2.9240230847969424e-15, -1.8539654594713968e-16, 4.827285742120292e-10, -4.2460184442820366e-10], [-1.853965459471397e-16, 1.7979172682890005e-15, 2.8431487752828667e-10, 2.710746020318318e-10], [4.827285742120292e-10, 2.8431487752828667e-10, 0.0005215183731453411, -2.6998643870306807e-05], [-4.2460184442820366e-10, 2.710746020318318e-10, -2.6998643870306835e-05, 0.0003945824375196279]]}