[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))




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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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