[R] Matching two vectors

[nblarson]

Just use vect_2_id as a subsetting index for vect_1, ie:

vect_2<-vect_1[vect_2_id]


Vincy Pyne wrote:
> 
> Dear R helpers
> 
> Suppose I have a vector as
> 
> vect_1 = c("AAA", "AA", "A", "BBB", "BB", "B", "CCC")
> 
> vect_1_id = c(1:length(vect_1))
> 
> Through some process I obtain
> 
> vect_2_id = c(2, 3, 7), then I need a new vector say vect_2 which will
> give me
> 
> vect2 = ("AA", "A", "CCC")  i.e. I need the subset of vect_1 as per
> vect_2_id.
> 
> Thanking in advance
> 
> Regards
> 
> Vincy
> 
> 
> 
> 
> 
> 	[[alternative HTML version deleted]]
> 
> 
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