{"coeffs": [-6.854019083704943e-07, 0.2807483431215363, 2.194197292147325, 0.15879510022747467], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-07, "errors": [4.4098237175545274e-07, 4122.445004873095, 2341.267685059151, 0.06495111905445283], "covariance": [[1.944654521990643e-13, -0.0013339604167067283, -0.0007576388879138695, -2.429693033102102e-08], [-0.0013339604163455571, 16994552.818203136, 9651747.24551184, 257.8638997772005], [-0.0007576388876734243, 9651747.2455122, 5481534.373102237, 146.45222056424657], [-2.4296930327458524e-08, 257.8638998122443, 146.4522205842342, 0.004218647866425705]]}