{"coeffs": [-0.06818454420840497, 6.587842460036184e-06, -3.11419367387186, 0.34294956707608903], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [50.02609396476938, 1.4075005790841904e-06, 252.38199872574242, 0.09657318692598209], "covariance": [[2502.6100773719354, -4.865236978259072e-05, 12625.677906940955, -4.469816151385106], [-4.86523697849631e-05, 1.9810578801223313e-12, -0.00024568950246895506, 1.1892454585739731e-07], [12625.677906941683, -0.0002456895024561143, 63696.67328080064, -22.56042850955238], [-4.469816151481694, 1.1892454585511314e-07, -22.5604285100387, 0.009326380433040678]]}