[R] request: a class having max frequency
Michael Conklin
michael.conklin at markettools.com
Fri Jun 6 15:21:41 CEST 2008
The 0 is the name of the item and the 1 is the index in f of the maximum
class. (since f is a table, and the first element of the table is the
maximum, which.max returns a 1) So, if you just want to know which class
is maximum you can say
names(which.max(f))
Michael Conklin
Chief Methodologist - Advanced Analytics
MarketTools, Inc.
6465 Wayzata Blvd. Suite 170
Minneapolis, MN 55426
Tel: 952.417.4719 | Mobile:612.201.8978
Michael.Conklin at markettools.com
MarketTools(r) http://www.markettools.com
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-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Muhammad Azam
Sent: Friday, June 06, 2008 8:15 AM
To: R Help; R-help request
Subject: [R] request: a class having max frequency
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
best regards
Muhammad Azam
Ph.D. Student
Department of Medical Statistics,
Informatics and Health Economics
University of Innsbruck, Austria
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