{"coeffs": [-2.6239572386495666e-06, 0.6622797199261241, 2.1430624800593474, 0.1668498531742389], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-07, "errors": [4.126252821474797e-06, 4421.197581163766, 1119.1766159453991, 0.0886174972447677], "covariance": [[1.7025962346728722e-11, -0.014154274987664405, -0.003583424815984122, -3.2224093938552363e-07], [-0.014154274988017159, 19546988.051688336, 4948100.862016345, 378.6116218718278], [-0.003583424816082034, 4948100.862016309, 1252556.2976789956, 95.84601967844644], [-3.2224093938833784e-07, 378.61162186798066, 95.84601967749342, 0.007853060817926411]]}