[R] How to get the most frequent value of the subgroup

[R. Michael Weylandt]

What you are looking for is commonly called the mode, but
(surprisingly?) there doesn't seem to be a standard implementation for
mode() in R. (the mode function gives you something else entirely) --
this SO thread may be of help:
http://stackoverflow.com/questions/2547402/standard-library-function-in-r-for-finding-the-mode

Michael

On Thu, Mar 29, 2012 at 9:30 AM, Jung, Yongsuhk <yjung.phd at ivey.ca> wrote:
> Dear Members of the R-Help,
>
>
> While using a R function - 'aggregate' that you developed, I become to have a question.
>
> In that function,
>
>
>
>> aggregate(x, by, FUN, ..., simplify = TRUE)
>
>
>
> I was wondering about what type of FUN I should write if I want to get "the most frequent value of the subgroup" as a summary statistics of the subgroups.
>
> I will appreciate if I can get your idea on this issue.
>
> Many thanks,
>
> Jason Jung.
>
>
>        [[alternative HTML version deleted]]
>
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