Change the source directory of Rscript to be absolute

Change-Id: I3cd804b4dd70b29d0a2552ee48032f289bd606a5
diff --git a/TestON/JenkinsFile/CHO_Graph_Generator b/TestON/JenkinsFile/CHO_Graph_Generator
index 16cf4dc..70969b5 100644
--- a/TestON/JenkinsFile/CHO_Graph_Generator
+++ b/TestON/JenkinsFile/CHO_Graph_Generator
@@ -28,7 +28,7 @@
                              echo "1" > existing.txt;
                           fi;
                           bash log-summary;''' + '''
-                          ''' +  script_file + ' ' + branchDir + 'event.csv ' +
+                          Rscript ''' +  script_file + ' ' + branchDir + 'event.csv ' +
                                 branchDir + 'failure.csv ' + branchDir + 'error.csv ' +
                                 branch + ' 60 ' +  saving_directory + ''';
         '''