{"coeffs": [-2.1268730346827144e-07, -3.85999668337039e-09, -0.30978246722623914, 0.04142221892961756], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.012372273088112e-08, 2.2350128908744095e-08, 0.04922176593111321, 0.042286183785007044], "covariance": [[2.5123875804022487e-15, -1.268685578900551e-16, 1.4126126380894187e-09, -1.1811390741259433e-09], [-1.268685578900551e-16, 4.995282622374785e-16, 2.2205852506498228e-10, 2.8721266903904897e-10], [1.4126126380894187e-09, 2.2205852506498222e-10, 0.002422782241377297, -0.0005285029726009132], [-1.181139074125943e-09, 2.87212669039049e-10, -0.0005285029726009128, 0.0017881213390993926]]}