Dear R users,
When you do:
x - rnorm(10)
y - rnorm(10)
z - rnorm(10)
a - data.frame(x,y,z)
a$x
[1] 1.37821893 0.21152756 -0.55453182 -2.10426048 -0.08967880 0.03712110
[7] -0.80592149 0.07413450 0.15557671 1.22165341
Why does this not work:
a[a$y0.5,y] -1
Error in
When specifying a column name with [ the name must be quoted (unlike
when using it with $):
a[a$y 0.5, y] - 1
On 8/4/06, Sander Oom [EMAIL PROTECTED] wrote:
Dear R users,
When you do:
x - rnorm(10)
y - rnorm(10)
z - rnorm(10)
a - data.frame(x,y,z)
a$x
[1] 1.37821893
/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
http://www.student.kuleuven.be/~m0390867/dimitris.htm
- Original Message -
From: Sander Oom [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch
Sent: Friday, August 04, 2006 1:48 PM
Subject: [R] Data frame referencing
://www.student.kuleuven.be/~m0390867/dimitris.htm
- Original Message -
From: Sander Oom [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch
Sent: Friday, August 04, 2006 1:48 PM
Subject: [R] Data frame referencing?
Dear R users,
When you do:
x - rnorm(10)
y - rnorm(10)
z - rnorm(10
