{"coeffs": [-1.2646434961666452e-06, 2.7712326221466464e-05, 0.5042421334147664, 0.19989570580783217], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.0690418110099343e-07, 2.5855138595466853e-06, 0.03319207227366932, 0.015632889959241763], "covariance": [[9.419017637727138e-14, -6.533745457366189e-13, -7.999402660326441e-09, -4.456075106417288e-09], [-6.533745457366211e-13, 6.684881917907997e-12, 8.549314278959807e-08, 3.879223903649857e-08], [-7.99940266032647e-09, 8.549314278959809e-08, 0.0011017136618204876, 0.0004908986050572425], [-4.456075106417295e-09, 3.879223903649851e-08, 0.0004908986050572415, 0.00024438724847776196]]}