{"coeffs": [-6.3647784770946705e-06, 0.0005415138460620074, 0.7929796129210731, 0.19416746973631316], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.6495291090173388e-06, 0.0002743474964789793, 0.15596564803336604, 0.027979208533496835], "covariance": [[1.331906271756489e-11, -8.30193360853637e-10, -4.799867584322653e-07, -9.434543162939996e-08], [-8.30193360853615e-10, 7.526654882428353e-08, 4.27460722932901e-05, 7.4279238159423396e-06], [-4.799867584322542e-07, 4.274607229329016e-05, 0.02432528336646782, 0.004262306461885545], [-9.43454316293988e-08, 7.427923815942419e-06, 0.004262306461885585, 0.0007828361101609021]]}