{"coeffs": [4.27917167355126e-08, 6.54007062666166e-06, 0.5247170095365395, 0.07937621470308823], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.5103152757123373e-08, 1.387037791032466e-07, 0.004285672659363728, 0.0027805886616145176], "covariance": [[6.301682783474709e-16, -1.4450189161502733e-15, -2.3851849698342474e-11, -4.1896743855285113e-11], [-1.4450189161502741e-15, 1.923873833752223e-14, 5.585004743081689e-10, 3.3405523163369984e-10], [-2.3851849698342506e-11, 5.58500474308169e-10, 1.8366990143217765e-05, 9.22455867446496e-06], [-4.1896743855285113e-11, 3.340552316336998e-10, 9.224558674464956e-06, 7.731673305099213e-06]]}