From: "Älphä Blüë" Date: 2009-07-22T05:36:25+09:00 Subject: Re: Mean method As a test you would do: a = [1,2,3,4,5] Stddev.new(a).newcalc You can also do Stddev.new(1..5).newcalc You can rename the newcalc to anything you want.. -- Posted via http://www.ruby-forum.com/.