{"coeffs": [-2.1329316330311978e-07, 0.24498190787324986, 2.506125595812996, 0.2040340272898067], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [6.939624807717652e-07, 716.9289366389495, 599.7414151846402, 0.04547092621900741], "covariance": [[4.815839247189026e-13, -0.0004193448834054723, -0.00035083057439235665, -2.9295028677091712e-08], [-0.0004193448831609248, 513987.1001902548, 429971.9694834721, 31.713535049806765], [-0.00035083057418861495, 429971.96948354464, 359689.76508767495, 26.53072968476927], [-2.929502866820295e-08, 31.713535057730816, 26.53072969139696, 0.0020676051312144158]]}