{"coeffs": [-6.616834465356566e-06, 0.03344239576574091, 3.766797438984977, 0.4653259898735228], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [3.264228688809049e-06, 8.323891402261275, 117.33397835974613, 0.15274602660954167], "covariance": [[1.0655188932844042e-11, -2.629089252037294e-05, -0.00037069222730492954, -4.938900007901072e-07], [-2.6290892529431778e-05, 69.28716807663918, 976.6747977302686, 1.2618774974249258], [-0.00037069222743211496, 976.6747977289316, 13767.262477725373, 17.789687721409205], [-4.938900008749912e-07, 1.2618774972136055, 17.789687718454772, 0.02333134864500281]]}