Hi,
You could use:
which(a%in%b)
#[1] 1 2 3 4 5
a1-c(1,2,5)
b1-c(1,3,4,5,7)
which(a1%in%b1)
#[1] 1 3
A.K.
Hello! I created the following function for calculating which elements
in vector a are existant in vector b. However, all I get is NA NA NA and I
can´t figure out why. =/
fun -
How about
?intersect
a-1:5;b-1:9
a
[1] 1 2 3 4 5
b
[1] 1 2 3 4 5 6 7 8 9
intersect(a, b)
[1] 1 2 3 4 5
I haven't used this in simulation, so I don't know how fast it is.
-Mike
On Tue, May 28, 2013 at 2:05 PM, arun smartpink...@yahoo.com wrote:
Hi,
You could use:
which(a%in%b)
#[1] 1 2 3
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