Many thanks, Arun.
Res 1 is exactly what I wanted.
Mintewab
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of arun
Sent: 23 January 2014 16:27
To: R help
Subject: Re: [R] counting matches in two vectors
Hi,
May be this helps:
z1 - factor(z)
res1 - table(z1[cut(w,breaks=c(-Inf,z,Inf),labels=F)])
res1
#
#-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
# 0 0 0 0 0 0 0 0 0 0 2 1 0 3 1 1 0 1 0 0 0 0 0 0 1 3
#21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 # 2 0 0 1 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 #or
res2 - table(z1[findInterval(w,z)])
identical(res1,res2)
#[1] TRUE
A.K.
Hi all,
I have the following reproducible example
z-c(-5:40)
w-c(11, 11, 12, 14, 14, 14, 15, 16, 18, 25, 26, 26, 26, 27, 27, 30)
r-z %in% w
now r gives me the presence or absence of elements in z that are in w but I am
interested in getting the number of times each element in z appears (or
doesn't appear) in w. I want the dimension of my resulting vector to be the
same as that of z. How do I do that?
Thanks in advance
Mintewab
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