I'm sure this is simple enough, but an R site search on my subject
terms did suggest a solution. I have a numeric vector with many
values that I wish to create a factor from having only a few levels.
Here is a toy example.
> x <- 1:10
> x <-
factor(x,levels=1:10,labels=c("A","A","A","B","B","B","C","C","C","C"))
> x
[1] A A A B B B C C C C
Levels: A A A B B B C C C C
> summary(x)
A A A B B B C C C C
3 0 0 3 0 0 4 0 0 0
So, there are clearly still 10 underlying levels. The results I would
like to see from printing the value and summary(x) are:
> x
[1] A A A B B B C C C C
Levels: A B C
> summary(x)
A B C
3 3 4
Hopefully this makes sense.
Thanks,
Kevin
--
Kevin E. Thorpe
Biostatistician/Trialist, Knowledge Translation Program
Assistant Professor, Dalla Lana School of Public Health
University of Toronto
email: kevin.tho...@utoronto.ca Tel: 416.864.5776 Fax: 416.864.3016
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
