1 files changed, 33 insertions, 0 deletions
diff --git a/avg-weights b/avg-weights
new file mode 100755
index 0000000..36b051a
--- /dev/null
+++ b/avg-weights
@@ -0,0 +1,33 @@
+#!/usr/bin/env ruby
+
+require 'zipf'
+require 'trollop'
+require 'zlib'
+
+conf = Trollop::options do
+  opt :weights_files, "a number of weights files: name value", :required => true
+  opt :filter, "Filter if key does not appear in every file.", :type => :bool, :default => false
+end
+
+h = {}
+ARGV.each { |fn|
+  f = ReadFile.new fn
+  while line = f.gets
+    k, v = line.split
+    v = v.to_f
+    if h.has_key? k
+      h[k] << v
+    else
+      h[k] = [v]
+    end
+  end
+  f.close
+}
+
+n = ARGV.size.to_f
+
+h.each_pair { |k,w|
+  next if conf[:filter] and w.size < n
+  puts "#{k} #{w.inject(:+)/n}"
+}
+