From 06a270c8d3f061bc7fed062cb28605dd8c6e3a8f Mon Sep 17 00:00:00 2001
From: Patrick Simianer <p@simianer.de>
Date: Tue, 29 Nov 2011 23:35:51 +0100
Subject: avg.rb lplp.rb

---
 dtrain/hstreaming/avg.rb | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100755 dtrain/hstreaming/avg.rb

(limited to 'dtrain/hstreaming/avg.rb')

diff --git a/dtrain/hstreaming/avg.rb b/dtrain/hstreaming/avg.rb
new file mode 100755
index 00000000..e0899144
--- /dev/null
+++ b/dtrain/hstreaming/avg.rb
@@ -0,0 +1,31 @@
+# avg.rb
+
+shard_count_key = "__SHARD_COUNT__"
+
+STDIN.set_encoding 'utf-8'
+STDOUT.set_encoding 'utf-8'
+
+w = {}
+c = {}
+w.default = 0
+c.default = 0
+while line = STDIN.gets
+  key, val = line.split /\s/
+  w[key] += val.to_f
+  c[key] += 1
+end
+
+if ARGV.size == 0
+  shard_count = w["__SHARD_COUNT__"]
+else
+  shard_count = ARGV[0].to_f
+end
+w.each_key { |k|
+  if k == shard_count_key
+    puts "# shard count: #{shard_count.to_i}"
+  else
+    puts "#{k}\t#{w[k]/shard_count}"
+    puts "# #{c[k]}"
+  end
+}
+
-- 
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