{"coeffs": [-6.276924382155945e-06, 0.0001762384732668332, 0.5992127436199524, 0.22541743896753802], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.219890183633369e-06, 1.8201378659100793e-05, 0.040468831543792445, 0.014172351340901982], "covariance": [[1.4881320601250544e-12, -1.9037738662929422e-11, -4.1967441684730906e-08, -1.6334516803516168e-08], [-1.9037738662929316e-11, 3.312901850919698e-10, 7.358836794379309e-07, 2.4985456784827165e-07], [-4.196744168473062e-08, 7.358836794379308e-07, 0.0016377263265198506, 0.0005554718499998963], [-1.633451680351612e-08, 2.4985456784827234e-07, 0.0005554718499998978, 0.00020085554252996618]]}