{"coeffs": [-5.752093203213942e-06, 0.00029294665471493833, 0.8166201814276562, 0.25305610456558986], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.0687107313584583e-06, 6.165119016628622e-05, 0.08399949276381291, 0.016138827762833992], "covariance": [[1.1421426273207309e-12, -5.825942147025471e-11, -8.035537747630863e-08, -1.6488730832631613e-08], [-5.825942147025291e-11, 3.800869248919587e-09, 5.175153170565454e-06, 9.70845620533945e-07], [-8.035537747630646e-08, 5.175153170565465e-06, 0.007055914784577858, 0.001331651285290168], [-1.6488730832631375e-08, 9.708456205339585e-07, 0.0013316512852901833, 0.0002604617615584213]]}