{"coeffs": [-6.20082560073554e-07, 4.262280365326624e-05, 0.43697167904960205, 0.15683472211348737], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.6304842591326364e-07, 1.5435062991963441e-06, 0.011092950721921426, 0.006523375659771056], "covariance": [[6.919447437544575e-14, -2.974970530258252e-13, -1.8366707056537839e-09, -1.5033864935782206e-09], [-2.974970530258251e-13, 2.3824116956587945e-12, 1.6852169806132802e-08, 9.442099828611234e-09], [-1.8366707056537828e-09, 1.68521698061328e-08, 0.0001230535557189771, 6.465454314628813e-05], [-1.503386493578221e-09, 9.442099828611236e-09, 6.465454314628817e-05, 4.255442999849346e-05]]}