Hello there,
   
  I got a small problem about logical calculation:
  we can get a sequene from a+b as below:
   
  > a<-c(1,2)
> b<-c(3,4)
> a+b
[1] 4 6
   
  but when the sequences are logical. (I want to get (True,False) && (True, True) ==> (True, False), but when I do as below.
> e<-c(T,T)
> f<-c(F,T)
> e
[1] TRUE TRUE
> f
[1] FALSE  TRUE
> g<-e && f
  **g becomes one logical value only
> g
[1] FALSE
> 
what should I do when I want to get a sequence for operate && or ||?
   
  kind regards
  Yu
   

        
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