[R] Multidimensional contingency tables
Robert A. LaBudde
ral at lcfltd.com
Tue Apr 22 04:46:26 CEST 2008
How does one ideally handle and display multidimenstional contingency
tables in R v. 2.6.2?
E.g.:
> prob1<- data.frame(victim=c(rep('white',4),rep('black',4)),
+ perp=c(rep('white',2),rep('black',2),rep('white',2),rep('black',2)),
+ death=rep(c('yes','no'),4), count=c(19,132,11,52,0,9,6,97))
> prob1
victim perp death count
1 white white yes 19
2 white white no 132
3 white black yes 11
4 white black no 52
5 black white yes 0
6 black white no 9
7 black black yes 6
8 black black no 97
The xtabs() function doesn't seem appropriate, as it has no means of
using 'count'.
This must be a common problem.
================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS e-mail: ral at lcfltd.com
Least Cost Formulations, Ltd. URL: http://lcfltd.com/
824 Timberlake Drive Tel: 757-467-0954
Virginia Beach, VA 23464-3239 Fax: 757-467-2947
"Vere scire est per causas scire"
More information about the R-help
mailing list