{"coeffs": [-1.4962752757361146e-08, 4.8907912677850255e-06, 0.6361796877542564, 0.14866168070402475], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.50003547979397e-08, 1.1244257929249684e-06, 0.06516122319908378, 0.02281703011936609], "covariance": [[4.225046123858043e-15, -5.3939181874701194e-14, -3.0532025454951257e-09, -1.28477679700538e-09], [-5.3939181874701194e-14, 1.2643333637949438e-12, 7.308514988885754e-08, 2.438153033600811e-08], [-3.053202545495125e-09, 7.308514988885755e-08, 0.004245985008800815, 0.0014134509880685585], [-1.2847767970053814e-09, 2.4381530336008112e-08, 0.0014134509880685585, 0.0005206168634680592]]}