{"coeffs": [-6.25652713442259e-07, -2.0345471745794682e-08, -0.17975367725012215, 0.08300403036020039], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.35714509138953e-08, 5.239440989792297e-08, 0.04504215483510605, 0.04142007685986558], "covariance": [[6.984187407853611e-15, -1.2526695434240289e-15, 2.3013669844638046e-09, -2.3713826738012153e-09], [-1.252669543424029e-15, 2.745174188551569e-15, 6.202524637432019e-10, 1.2176094060077492e-09], [2.301366984463804e-09, 6.202524637432019e-10, 0.002028795712189667, -0.00045775081139873427], [-2.3713826738012157e-09, 1.217609406007749e-09, -0.00045775081139873427, 0.0017156227670771722]]}