R help - Jun 2015 - most frequent value

Dear group,
I have the following integer object
> a 
3 4 6 
3 3 6 

how to get the most frequent value (it should be 3)

and get nothing if no frequent one and all is equal

3 4 6 
3 4 6 
Thanks in advance
Ragia
 		 	   		  
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Hi Ragia,
The basic method is to use "table" and examine the result:
> a<-matrix(c(3,3,4,3,6,6),nrow=2)
> b<-matrix(c(3,3,4,4,6,6),nrow=2)
> table(a)
a
3 4 6
3 1 2

but you can get the modal value directly like this:

library(prettyR)
Mode(a)
[1] "3"
Mode(b)
[1] ">1 mode"

Jim

On Mon, Jun 15, 2015 at 9:04 AM, Ragia Ibrahim <ragia11 at hotmail.com>
wrote:
> Dear group,
> I have the following integer object
>
>> a
>
> 3 4 6
> 3 3 6
>
> how to get the most frequent value (it should be 3)
>
> and get nothing if no frequent one and all is equal
>
> 3 4 6
> 3 4 6
> Thanks in advance
> Ragia
>
>         [[alternative HTML version deleted]]
>
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Dear group
working on a graph..I parse the graph node by node and create cluster for set of
nodes..firstly the number of clusters are not knowen
what kind of R object can I flexibly use as community, say I want M communities
C1,C2..CM
how can I define this ?

thanks in advance
Ragia
 		 	   		  
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