From 68acbb9a0c7967cb90a7e3756fc94fdd8a73d154 Mon Sep 17 00:00:00 2001 From: Patrick Simianer Date: Wed, 29 Jan 2014 19:14:08 +0100 Subject: make use of nlp_ruby, LICENSE --- var | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) (limited to 'var') diff --git a/var b/var index 08b75b6..30c638a 100755 --- a/var +++ b/var @@ -3,13 +3,8 @@ require 'trollop' -def usage - STDERR.write "./stddev [-r ] < \n" - exit 1 -end -usage if not [0,2].include? ARGV.size - -opts = Trollop::options do +cfg = Trollop::options do + banner "stddev [-r ] < " opt :round, "Number of digits after decimal point.", :type => :int, :default => -1 end @@ -18,10 +13,10 @@ sum = 0.0 i = 0 cached = [] while line=STDIN.gets - v = line.strip.to_f + v = line.to_f sum += v cached << v - i +=1 + i +=1 end avg = sum/i.to_f @@ -31,8 +26,8 @@ cached.each { |v| var += (avg - v)**2 } -if opts[:round] >= 0 - puts var.round opts[:round] +if cfg[:round] >= 0 + puts var.round cfg[:round] else puts var end -- cgit v1.2.3