Dear all, I want to find out the mode for a data set, anyone knows how to do it in R? I tried the codes below, but it seems too long: tt<-table(data1) #get the frequency tables of data1 oo<-order(tt); #get the order of frequencies len<-length(tt) #the length of the tables mm<-oo[len]; #the last number of oo is the position tt[mm] #we can get the mode Thank you everybody first! Regards, Long Yu
Hi Yu,
this has been recently discussed in the list, look at:
http://tolstoy.newcastle.edu.au/R/help/04/11/7054.html
Best,
Dimitris
----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven
Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/16/336899
Fax: +32/16/337015
Web: http://www.med.kuleuven.ac.be/biostat
http://www.student.kuleuven.ac.be/~m0390867/dimitris.htm
----- Original Message -----
From: "LONG Yu" <ylong at smu.edu.sg>
To: <r-help at stat.math.ethz.ch>
Sent: Tuesday, November 23, 2004 9:19 AM
Subject: [R] Mode?
>
> Dear all,
>
> I want to find out the mode for a data set, anyone knows how to do
> it in
> R?
> I tried the codes below, but it seems too long:
>
> tt<-table(data1) #get the frequency tables of data1
> oo<-order(tt); #get the order of frequencies
> len<-length(tt) #the length of the tables
> mm<-oo[len]; #the last number of oo is the position
> tt[mm] #we can get the mode
>
>
> Thank you everybody first!
>
> Regards,
> Long Yu
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html
>
LONG Yu wrote:> Dear all, > > I want to find out the mode for a data set, anyone knows how to do it in > R? > I tried the codes below, but it seems too long: > > tt<-table(data1) #get the frequency tables of data1 > oo<-order(tt); #get the order of frequencies > len<-length(tt) #the length of the tables > mm<-oo[len]; #the last number of oo is the position > tt[mm] #we can get the mode > > > Thank you everybody first! > > Regards, > Long Yu > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.htmlSee ?which.max Uwe Ligges
Yhe question of finding the mode of a dataset has been discussed previously in the list not only for categorical data : search "How can I get the mode" in the search engine of the list. Hope this helps. Romain. Selon Uwe Ligges <ligges at statistik.uni-dortmund.de>:> LONG Yu wrote: > > > Dear all, > > > > I want to find out the mode for a data set, anyone knows how to do it in > > R? > > I tried the codes below, but it seems too long: > > > > tt<-table(data1) #get the frequency tables of data1 > > oo<-order(tt); #get the order of frequencies > > len<-length(tt) #the length of the tables > > mm<-oo[len]; #the last number of oo is the position > > tt[mm] #we can get the mode > > > > > > Thank you everybody first! > > > > Regards, > > Long Yu > > > > ______________________________________________ > > R-help at stat.math.ethz.ch mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > > > See ?which.max > > Uwe Ligges > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html >