{"coeffs": [-3.308628691566411e-06, 0.057599726285076196, 2.9790144069230924, 0.3196174905737605], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [1.2961340145606506e-06, 17.725131050247846, 98.82548744650386, 0.058545534338553425], "covariance": [[1.6799633837011088e-12, -2.142995607733263e-05, -0.00011951236314713495, -7.415311814556774e-08], [-2.142995608059448e-05, 314.1802707484604, 1751.694273114431, 1.0228358125356303], [-0.00011951236316522714, 1751.694273113912, 9766.476969039091, 5.703457154693296], [-7.415311815116286e-08, 1.0228358124626524, 5.7034571542883485, 0.0034275795909867383]]}