{"coeffs": [-6.19007970152101e-07, 1.944933554576233e-05, 0.4124197232615881, 0.1628164031704706], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [4.510611501769432e-08, 2.0789154634568964e-07, 0.003265990607795974, 0.002186078659302317], "covariance": [[2.034561611989469e-15, -7.0267663231963234e-15, -9.046113301592228e-11, -8.777455905161952e-11], [-7.026766323196312e-15, 4.321889504200202e-14, 6.628766165577953e-10, 4.265368865088033e-10], [-9.046113301592202e-11, 6.628766165577951e-10, 1.0666694650211516e-05, 6.235262913595892e-06], [-8.777455905161944e-11, 4.2653688650880374e-10, 6.2352629135959e-06, 4.7789399046570155e-06]]}