Is this what you want:
> d1[which(id != 4),]
id x y
[1,] 1 1 0.00
[2,] 1 2 0.10
[3,] 1 3 0.50
[4,] 1 4 0.40
[5,] 1 5 0.20
[6,] 2 1 0.00
[7,] 2 2 0.10
[8,] 2 3 0.50
[9,] 2 4 0.40
[10,] 2 5 0.12
[11,] 3 1 0.00
[12,] 3 2 0.10
[13,] 3 3 0.50
[14,] 3 4 0.55
[15,] 3 5 0.20
[16,] 5 1 0.00
[17,] 5 2 0.10
[18,] 5 3 0.60
[19,] 5 4 0.40
[20,] 5 5 0.10
-----Original Message-----
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of gina patel
Sent: Thursday, April 02, 2009 4:30 PM
To: R-help@r-project.org
Subject: [R] Deleting rows based on identity variable
I have created this data frame to help illustrate my problem.
id<-c(rep(1,5),rep(2,5),rep(3,5),rep(4,5),rep(5,5))
x<-rep((seq(1:5)),5)
y<-c(0, 0.1, 0.5, 0.4, 0.2, 0, 0.1, 0.5, 0.4, 0.12, 0, 0.1, 0.5, 0.55, 0.2, 0,
0.1, 0.5, 0.3, 0.2, 0, 0.1, 0.6, 0.4, 0.1)
d1<-cbind(id,x,y)
I would like to delete all rows where id=4, however, when I tried the command
d2=d1[-c(id==4),]
and looked at d2 no data was removed.
Thanks in advance, I appreciate any help.
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