{"coeffs": [4.3707498395526596e-08, 0.042425687130264185, 1.410790805729208, 0.08343087638340846], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.8154368429708295e-08, 406.4408922804473, 801.3433969336943, 0.025871723039602446], "covariance": [[1.4557558302699212e-15, -7.105957464772114e-06, -1.4011537914050146e-05, -5.720626367499369e-10], [-7.105957461244684e-06, 165194.1989177262, 325698.7237614541, 10.035622021913902], [-1.4011537907271741e-05, 325698.7237614693, 642151.2398092323, 19.78693995425191], [-5.720626366174954e-10, 10.035622023431763, 19.786939957255647, 0.000669346053037896]]}