{"coeffs": [1.643266171527351e-08, 0.050970357865622824, 1.2342563415043035, 0.06563370509887595], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [2.5522148145077434e-08, 321.46278980615006, 411.4653352317195, 0.01327797002229173], "covariance": [[6.513800459392796e-16, -3.178873170450262e-06, -4.069292588046938e-06, -1.6783267427858128e-10], [-3.178873169541548e-06, 103338.32522995301, 132270.79399601364, 4.084848321347951], [-4.069292586926783e-06, 132270.79399601635, 169303.7220973513, 5.228664181703664], [-1.6783267425219122e-10, 4.084848321617806, 5.228664182048775, 0.0001763044879128778]]}