On 6/6/2008 9:18 AM, Chuck Cleland wrote:
On 6/6/2008 9:14 AM, Muhammad Azam wrote:
Dear R users
I have a very basic question. I tried but could not find the
required result. using
dat <- pima
f <- table(dat[,9])
f
0 1 500 268
i want to find that class say "0" having maximum frequency i.e 500. I
used
which.max(f)
which provide 0 1 How can i get only the "0". Thanks and
table(iris$Species)
setosa versicolor virginica
50 50 50
which.max(table(iris$Species))
setosa
1
names(which.max(table(iris$Species)))
[1] "setosa"
If, as above, more than one category frequency is at the maximum, you
might want something like this:
x <- table(iris$Species)
which(x == max(x))
setosa versicolor virginica
1 2 3
names(which(x == max(x)))
[1] "setosa" "versicolor" "virginica"
best regards
Muhammad Azam Ph.D. Student Department of Medical Statistics,
Informatics and Health Economics University of Innsbruck, Austria
[[alternative HTML version deleted]]
______________________________________________
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.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
______________________________________________
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.
