{"coeffs": [-3.6547493318850434e-06, 0.005149964805440407, 4.552491848809278, 0.6516024976450737], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [3.384278367723423e-06, 1.4838887314983293, 191.38100309138974, 0.5811987510136472], "covariance": [[1.1453340070240714e-11, -4.938007757485948e-06, -0.000637039898792392, -1.95804147853708e-06], [-4.938007757486633e-06, 2.201925767467721, 283.9877995888637, 0.8589643318128575], [-0.0006370398987924111, 283.9877995888637, 36626.68834426653, 110.7975750352912], [-1.9580414785374657e-06, 0.8589643318128576, 110.79757503529122, 0.3377919881798234]]}