{"coeffs": [-4.372480590400443e-07, 5.2734868312214164e-05, 0.44164247534687306, 0.10209264137142442], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.5475610550953187e-07, 1.039416599041147e-06, 0.004600666415737481, 0.0026684824523628002], "covariance": [[2.3949452192477358e-14, -8.237269009723452e-14, -2.6301596569924033e-10, -2.861962012843185e-10], [-8.237269009723443e-14, 1.0803868663622648e-12, 4.628609854824152e-09, 2.48192660134915e-09], [-2.630159656992401e-10, 4.628609854824153e-09, 2.1166131468894758e-05, 1.0284841347715374e-05], [-2.861962012843185e-10, 2.4819266013491507e-09, 1.0284841347715374e-05, 7.1207985985681845e-06]]}