From: Ruy Diaz <ruy@...>
Date: 2007-05-02T07:44:26+09:00
Subject: Re: file & split

Oops, forgot to include the +=

i = 0
while line=file.gets
    tab=line.split
    c8+=tab[7].to_f
    i = i + 1
end
puts c8 / i