From 59e1a2406354ce8a7e2b1a78f03d6ecaf6dbb297 Mon Sep 17 00:00:00 2001
From: mr <mr@mrautenberg.de>
Date: Wed, 15 Jun 2011 13:12:31 +0200
Subject: hotfix close R

---
 report/report_content.rb   |  3 ++-
 report/statistical_test.rb | 19 +++++++++++++++----
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/report/report_content.rb b/report/report_content.rb
index ca04f25..3e3c3d4 100755
--- a/report/report_content.rb
+++ b/report/report_content.rb
@@ -43,7 +43,8 @@ class Reports::ReportContent
     
     section_test = @xml_report.add_section(@current_section, section_title)
     @xml_report.add_paragraph(section_test, section_text) if section_text
-    @xml_report.add_table(section_test, test_attribute.to_s+", significance-level: "+level.to_s, table, true, true)  
+    @xml_report.add_table(section_test, test_attribute.to_s+", significance-level: "+level.to_s, table, true, true)
+    Reports::ReportStatisticalTest.quit_r
   end
   
   def add_predictions( validation_set, 
diff --git a/report/statistical_test.rb b/report/statistical_test.rb
index c37827e..5e5ea3a 100644
--- a/report/statistical_test.rb
+++ b/report/statistical_test.rb
@@ -1,29 +1,35 @@
 #require "rubygems"
 #require "rinruby"
-#R.quit
 
 module LIB
   class StatisticalTest
   
-    @@r = RinRuby.new(true,false)
-    
     # -1 -> array1 < array2
     # 0 -> not difference
     # 1 -> array2 > array1
     #
     def self.pairedTTest(array1, array2, significance_level=0.95)
+    
+      @@r = RinRuby.new(true,false) unless defined?(@@r) and @@r
       @@r.assign "v1",array1
       @@r.assign "v2",array2
       @@r.eval "ttest = t.test(v1,v2,paired=T)"
       t = @@r.pull "ttest$statistic"
       p = @@r.pull "ttest$p.value"
-      #@@r.quit
       if (1-significance_level > p)
         t
       else
         0
       end
     end
+    
+    def self.quit_r
+      begin
+        @@r.quit
+        @@r = nil
+      rescue
+      end
+    end
   end
 end
 
@@ -68,6 +74,11 @@ module Reports
       LOGGER.debug "paired-t-testing "+attribute.to_s+" "+array1.inspect+" vs "+array2.inspect
       LIB::StatisticalTest.pairedTTest(array1, array2, significance_level)
     end
+    
+    def self.quit_r
+      LIB::StatisticalTest.quit_r
+    end
+
   end
 
 end
-- 
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