{"coeffs": [4.51857751270121e-07, 0.9254992003435082, 1.8269645426466983, 0.12680781049945025], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [8.92209774954038e-07, 2875.473375873548, 395.89916207947175, 0.019816393417808147], "covariance": [[7.960382825235352e-13, -0.0016906024105177778, -0.00023278939261435074, -1.3849379180321589e-08], [-0.0016906024114744398, 8268347.135357618, 1138397.4895872476, 54.64185871648033], [-0.00023278939274904619, 1138397.4895871403, 156736.14653522783, 7.523468750365027], [-1.3849379184385175e-08, 54.64185870525269, 7.52346874881967, 0.00039268944808935]]}