From 09452bba5c407c27721223d126e3f45c12b20a0c Mon Sep 17 00:00:00 2001
From: Christoph Helma <helma@in-silico.ch>
Date: Thu, 13 Oct 2016 22:59:45 +0200
Subject: tests pass

---
 lib/regression.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/regression.rb')

diff --git a/lib/regression.rb b/lib/regression.rb
index d1724fd..3890987 100644
--- a/lib/regression.rb
+++ b/lib/regression.rb
@@ -3,7 +3,7 @@ module OpenTox
     
     class Regression
 
-      def self.weighted_average dependent_variables:, independent_variables:nil, weights:, query_variables:
+      def self.weighted_average dependent_variables:, independent_variables:nil, weights:, query_variables:nil
         # TODO: prediction_interval
         weighted_sum = 0.0
         sim_sum = 0.0
-- 
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