By any chance is there an R command to compare two vectors? 
 
For example, 
a_tmp<-c("a", "b", "c", "d", "e", "f", "g", 'h')
b_tmp<-c("a", "c", "e", "g")
 
I would like to compare b_tmp against a_tmp to determine if the members of b_tmp are part of a_tmp.  
 
I tried 
 subset(b_tmp, b_tmp==a_tmp)
 
That doesn't seem to work. 
 
Thanks again.  


      
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