[R] One to One Matching multiple vectors

[Nick Sabbe]

Hello Vincy.
You probably want
y[match(z,x)]
Or, more instructional:
whereAreZInX<-match(z, x)
y[whereAreZInX]

HTH,


Nick Sabbe
--
ping: nick.sabbe at ugent.be
link: http://biomath.ugent.be
wink: A1.056, Coupure Links 653, 9000 Gent
ring: 09/264.59.36

-- Do Not Disapprove




-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of Vincy Pyne
Sent: woensdag 16 maart 2011 10:42
To: r-help at r-project.org
Subject: [R] One to One Matching multiple vectors

Dear R helpers

Suppose,

x = c(0,  1,  2,  3)

y = c("A", "B", "C", "D")

z = c(1, 3)

For given values of z, I need to the values of y. So I should get "B" and
"D". 

I tried doing 

y[x][z] but it gives 

> y[x][z]
[1] "A" "C"

Kindly guide.

Regards

Vincy



	[[alternative HTML version deleted]]