[R] Related with "kmeans"

[msck9@mizzou.edu]

Hi, 
 I am new here. 
 I used y<-kmeans(x, 2)(x is a vector) to do the cluster analysis. I get 
 y has $cluster, $center etc. I need to pull out the data belong to
 cluster 1 and cluster 2. How can I do that? 

 Thanks,
 Ming