import numpy as npforwardVelocity = np.array([1,2,3,4,5,6,7,8,9,10])
top_k_idx=forwardVelocity.argsort()[::-1][0:int(forwardVelocity.shape[0] * 0.2)]
top_k = forwardVelocity[top_k_idx[-1]]
import numpy as npforwardVelocity = np.array([1,2,3,4,5,6,7,8,9,10])
top_k_idx=forwardVelocity.argsort()[::-1][0:int(forwardVelocity.shape[0] * 0.2)]
top_k = forwardVelocity[top_k_idx[-1]]