[R] comparing three vectors

arun smartpink111 at yahoo.com
Tue Jul 17 18:37:48 CEST 2012



Hi,

Try this:

dat1<-data.frame(a,b,c)
dat1[a<=c& b>c,"abc_check"]<-TRUE
> dat1
   a   b  c abc_check
1 10 100 50      TRUE
2 20 200 60      TRUE
3 30 300 70      TRUE
#or
dat1<-within(dat1,{abc_check<-ifelse(a<=c & b>c,"TRUE","FALSE")})
 dat1
   a   b  c abc_check
1 10 100 50      TRUE
2 20 200 60      TRUE
3 30 300 70      TRUE



A.K.




----- Original Message -----
From: arunkumar1111 <akpbond007 at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Tuesday, July 17, 2012 3:02 AM
Subject: [R] comparing three vectors

Hi

I 've a data 

a=c(10,20,30)
b=c(100,200,300)
c=c(50,60,70)

I want to compare a[1]<=c[1]<b[1],......

How to compare for all the records

-----
Thanks in Advance
        Arun
--
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