From: WATANABE Hirofumi Date: 2006-06-06T23:45:49+09:00 Subject: Re: mode Hi, "Kroeger, Simon (ext)" writes: > li.sort_by{|x|li.grep(x).size}.last In 1.9, you can use Enumerable#max_by. li.max_by{|x|li.grep(x).size} -- eban