[R] extract values from a vector

[Bernd Weiss]

Am 1 Nov 2006 um 14:49 hat Antje geschrieben:

Date sent:      	Wed, 01 Nov 2006 14:49:43 +0100
From:           	Antje <niederlein-rstat at yahoo.de>
To:             	R-help at stat.math.ethz.ch
Subject:        	[R] extract values from a vector

> Hello,
> 
> I'm looking for a solution for the following problem:
> I have two vectors
> 
> V1 <- c("apple","honey","milk","bread","butter")
> V2 <- c("bread","milk")
> 
> now, I would like to know for each element in V1 if it's equal to one
> of the elements in V2 I could do: which(V1 == V2[1] | V1 == V2[2])
> 
> but what if I don't know the length of V2 and it's content???
> 

> V1%in%V2
[1] FALSE FALSE  TRUE  TRUE FALSE

Is this what you are looking for?

HTH,

Bernd