I have a question, which very easy to solve, but I can't find a solution.
I want to convert a data frame to matrix. Here my toy example:
L3 - c(1:3)
L10 - c(1:6)
d - data.frame(cbind(x=c(10,20), y=L10), fac=sample(L3, + 6, repl=TRUE))
d
x y fac
1 10 1 1
2 20 2 1
3 10 3 1
4 20 4 3
5
Hi
set the column names to NULL:
a - data.frame(x=1:4,y=4:1)
aa - as.matrix(a)
colnames(aa) - NULL
aa
[,1] [,2]
114
223
332
441
best wishes
Robin
On 6 Apr 2006, at 15:16, Muhammad Subianto wrote:
I have a question, which very easy to solve,
://www.med.kuleuven.be/biostat/
http://www.student.kuleuven.be/~m0390867/dimitris.htm
- Original Message -
From: Muhammad Subianto [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch
Sent: Thursday, April 06, 2006 4:16 PM
Subject: [R] convert a data frame to matrix - changed column name
On this day 06/04/2006 16:22, Robin Hankin wrote:
Hi
set the column names to NULL:
a - data.frame(x=1:4,y=4:1)
aa - as.matrix(a)
colnames(aa) - NULL
aa
On this day 06/04/2006 16:28, Dimitris Rizopoulos wrote:
try the following:
out - data.matrix(d)
dimnames(out) - NULL
out
