{"coeffs": [4.480726402261157e-08, 0.7874012612887429, 2.0036345545897714, 0.15245587844938097], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [1.5231301428724767e-06, 1644.6992128345812, 320.03138292899075, 0.025999823213390685], "covariance": [[2.3199254321267313e-12, -0.0018536994487391408, -0.00036074856646741744, -3.3783869448550414e-08], [-0.0018536994480943107, 2705035.500698691, 526355.3533378722, 41.20659723402704], [-0.00036074856634374375, 526355.353337924, 102420.08605944231, 8.018563458864664], [-3.3783869442703935e-08, 41.20659723972217, 8.018563459970713, 0.0006759908071275691]]}