{"coeffs": [-1.1294937596952957e-06, 0.30346384786749, 2.2664439932168263, 0.18935591196920304], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [4.200598722558437e-07, 158.98213596239128, 100.05353268157572, 0.012805588781917114], "covariance": [[1.7645029627959572e-13, -5.476831651371968e-05, -3.447314303578527e-05, -4.912542921786259e-09], [-5.47683165223191e-05, 25275.319555164264, 15906.723769097294, 1.9755783950602108], [-3.447314304084046e-05, 15906.723769096205, 10010.70940206314, 1.2433894954268907], [-4.912542922154068e-09, 1.9755783949340173, 1.2433894953476154, 0.00016398310405156143]]}