{"coeffs": [-2.746540538896744e-07, 1.0807425193747375, 1.941799485247853, 0.13558914328692087], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [6.517909448889258e-07, 3101.8131182635357, 390.74613340572057, 0.015734760568753017], "covariance": [[4.248314358391988e-13, -0.0013932359543459985, -0.00017552527867835044, -8.310321174137182e-09], [-0.0013932359542527257, 9621244.62063176, 1212021.4752062606, 46.875327507187215], [-0.00017552527866648387, 1212021.4752062734, 152682.5407715212, 5.905234986492587], [-8.310321173914331e-09, 46.875327508504554, 5.905234986658738, 0.00024758269015598476]]}