{"coeffs": [2.6972462464368474e-07, 0.8518755072784634, 1.915308895066639, 0.1323109250148419], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [4.413445565135164e-07, 2345.069924191483, 365.665024377836, 0.014049970555749773], "covariance": [[1.9478501756411247e-13, -0.0007018480656699519, -0.00010944754458925879, -4.964423367381339e-09], [-0.0007018480652966878, 5499352.949347449, 857510.0461807324, 31.625453964229283], [-0.00010944754453194994, 857510.0461807941, 133710.9100532434, 4.93148628797622], [-4.96442336610478e-09, 31.625453970489744, 4.93148628895078, 0.00019740167261743556]]}