creating a factor

Dear Simon,

One doesn't generally use cbind.data.frame() directly, but rather through 
the generic function cbind(). I believe that the following will give you 
what you want:

fac <- factor(c(rep(1,7), rep(2,3)))
cbind(fac, as.data.frame(mat))

where mat is the matrix.

I hope that this helps,
  John

Hi list,
I'd like to make a factor with seven 1s and three 2s using the
factor() function.
That is,

1
1
1
1
1
1
1
2
2
2


I will then bind this factor to the matrix below using cbind.data.frame().

0.56    0.48
0.22    0.59
0.32    0.64
0.26    0.60
0.25    0.38
0.24    0.45
0.56    0.67
0.78    0.97
0.87    0.79
0.82    0.85



I am new to R and have been using various manuals and have made many 
attempts without success
any help appreciated.
thanks,
Simon

-----------------------------------------------------
John Fox
Department of Sociology
McMaster University
Hamilton, Ontario, Canada L8S 4M4
email: jfox at mcmaster.ca
phone: 905-525-9140x23604
web: www.socsci.mcmaster.ca/jfox