{"coeffs": [-1.0278305486421973e-05, 0.025657615561857475, 3.0523663541245685, 0.4041954195543819], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [3.71417712584017e-06, 2.488302213356371, 40.01717397187459, 0.10234222694691023], "covariance": [[1.3795111722114346e-11, -8.847857646353015e-06, -0.00014237459803425988, -3.751676947654468e-07], [-8.847857646510751e-06, 6.191647904994214, 99.57462336104874, 0.25219718147434833], [-0.00014237459803677398, 99.57462336103656, 1601.3742126952773, 4.056992518504759], [-3.7516769476874915e-07, 0.2521971814721889, 4.056992518470527, 0.010473931416452878]]}