{"coeffs": [-1.6966239245055749e-06, 0.40512835544121434, 2.0859370114003712, 0.18180600048018275], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [9.439898199397042e-07, 107.41801948403761, 48.5030438215945, 0.01145257489340424], "covariance": [[8.911167801497952e-13, -8.179624287787007e-05, -3.694426307686154e-05, -9.772059923222488e-09], [-8.179624289454069e-05, 11538.630909873084, 5210.100336585042, 1.19216040424543], [-3.69442630845764e-05, 5210.100336584212, 2352.5452599595164, 0.5383666644002671], [-9.772059924249733e-09, 1.1921604041419247, 0.5383666643535103, 0.00013116147168903313]]}