1 files changed, 50 insertions, 0 deletions
diff --git a/train_test_split b/train_test_split
new file mode 100755
index 0000000..db56de9
--- /dev/null
+++ b/train_test_split
@@ -0,0 +1,50 @@
+#!/usr/bin/env ruby
+
+require 'zipf'
+require 'trollop'
+
+cfg = Trollop::options do
+  opt :foreign, "foreign file", :type => :string, :required => true
+  opt :english, "english file", :type => :string, :required => true
+  opt :size, "one size", :type => :int, :required => true
+  opt :repeat, "number of repetitions", :type => :int, :default => 1
+  opt :prefix, "prefix for output files", :type => :string
+end
+fn = cfg[:foreign]
+fn_ext = fn.split('.').last
+f = ReadFile.readlines fn
+en = cfg[:english]
+en_ext = en.split('.').last
+e = ReadFile.readlines en
+size = cfg[:size]
+nlines_f = `wc -l #{fn}`.split()[0].to_i
+nlines_e = `wc -l #{en}`.split()[0].to_i
+if nlines_f != nlines_e
+  STDERR.write "Unbalanced files (#{nlines_f} vs. #{nlines_e}), exiting!\n"
+  exit 1
+end
+
+prefix = cfg[:prefix]
+a = (0..nlines_e-1).to_a
+i = 0
+cfg[:repeat].times {
+  b = a.sample(size)
+  ax = a.reject{|j| b.include? j}
+  `mkdir split_#{i}`
+  new_f = WriteFile.new "split_#{i}/#{prefix}.train.#{i}.#{fn_ext}"
+  new_e = WriteFile.new "split_#{i}/#{prefix}.train.#{i}.#{en_ext}"
+  ax.each { |j|
+    new_f.write f[j]
+    new_e.write e[j]
+  }
+  new_f.close; new_e.close
+  new_f = WriteFile.new "split_#{i}/#{prefix}.test.#{i}.#{fn_ext}"
+  new_e = WriteFile.new "split_#{i}/#{prefix}.test.#{i}.#{en_ext}"
+  b.each { |j|
+    new_f.write f[j]
+    new_e.write e[j]
+  }
+  new_f.close; new_e.close
+  i += 1
+}
+