{"coeffs": [-1.8228261094406749e-07, 0.23896663605411603, 2.2406221566796107, 0.1720539432955101], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [2.055340152610084e-07, 379.5315483230251, 274.22784992234114, 0.01638039903246469], "covariance": [[4.224423142931244e-14, -6.140821630596403e-05, -4.4374051538508974e-05, -2.995662069440726e-09], [-6.140821629214289e-05, 144044.19617247276, 104078.11941953958, 6.013652868425739], [-4.437405152879884e-05, 104078.11941954495, 75200.91367303007, 4.345284566977146], [-2.9956620691517775e-09, 6.013652868997123, 4.3452845673880365, 0.00026831747246277015]]}