{"coeffs": [-6.4555140070351e-07, 7.712754182807473e-05, 0.4767068065587456, 0.13325503694739457], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.6833659673397355e-07, 1.5885980097506336e-06, 0.005629412881904686, 0.0026766395928122235], "covariance": [[2.8337209799976432e-14, -1.7492113029639257e-13, -5.538521916045699e-10, -3.652175173785943e-10], [-1.7492113029639265e-13, 2.5236436365836745e-12, 8.853184128807887e-09, 3.9513760919193885e-09], [-5.5385219160457e-10, 8.853184128807887e-09, 3.169028939495442e-05, 1.3688793192539513e-05], [-3.6521751737859425e-10, 3.9513760919193885e-09, 1.368879319253951e-05, 7.164399509809986e-06]]}