{"coeffs": [-1.6968210670215943e-07, 2.7300742595861597e-09, -0.4144178614467018, 0.07905165219041772], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.4241120755117613e-07, 4.1363100786501203e-08, 0.49816055727113967, 0.25643499179800977], "covariance": [[1.9572767656688987e-13, -5.930632041061064e-15, 2.1365137176870962e-07, -9.946278535394379e-08], [-5.93063204106106e-15, 1.7109061066742566e-15, -4.582631209556741e-09, 5.061379264522135e-09], [2.1365137176870964e-07, -4.582631209556744e-09, 0.24816394082069243, -0.1078435556575034], [-9.946278535394375e-08, 5.061379264522135e-09, -0.10784355565750339, 0.06575890501844533]]}