Plot some time series data for the Lorenz system (7.7) when = 10, b = 8

Plot some time series data for the Lorenz system (7.7) when σ = 10, b = 8 3 , and 166 ≤ r ≤ 167. When r = 166.2, the solution shows intermittent behavior, there are occasional chaotic bursts in between what looks like periodic behavior.