{"coeffs": [-4.222444949274026e-06, 0.05826222866961454, 3.0720981099949003, 0.3396146055271191], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [1.418226528391797e-06, 13.037061650042975, 76.4219114589517, 0.05463442455424429], "covariance": [[2.0113664858342482e-12, -1.738348611515765e-05, -0.00010192798621033748, -7.595950437697126e-08], [-1.7383486112233562e-05, 169.96497646702127, 996.3168557395186, 0.7030099525482774], [-0.00010192798619314456, 996.3168557399049, 5840.308551039853, 4.121504234464185], [-7.59595043705143e-08, 0.7030099526040919, 4.1215042347899065, 0.002984920346373411]]}