From: x1 <caldridge@...>
Date: 2006-10-12T13:08:55+09:00
Subject: Re: Counting Frequency of Values in an Array (And Sorting by Frequency?)

Ah ok.. I'm with ya.   Meet "sort_by", my new friend. Thanks again  :-D

On 10/12/06, Daniel Sheppard <daniels@pronto.com.au> wrote:
> items = Hash.new(0)
> ["a","a","a","b","c","c"].each do |i|
>         items[i] += 1
> end
> items.sort_by {|key,value| -value}.each do |key, value|
>         puts "#{a}:#{b}"
> end
>
> Slightly less horrific?
>
> > and.. so you're aware.. my hacky code was something like this:
> >
> > items = {}
> > ["a", "a", "a", "b", "c", "c"].each do |i|
> >    if items.include? i
> >      items[i] += 1
> >    else
> >      items[i] = 1
> >    end
> > end
> >
> > items.sort {|a,b| a[1]<=>b[1]}.reverse.each do |a, b|
> >       puts a + ":" + b.to_s
> > end
> >
> >
> > horrific eh?
>
>
>