lib/daru/maths/arithmetic/dataframe.rb in daru-0.1.0 vs lib/daru/maths/arithmetic/dataframe.rb in daru-0.1.1

@@ -62,11 +62,11 @@
           all_vectors = (self.vectors.to_a | other.vectors.to_a).sort
           all_indexes = (self.index.to_a   | other.index.to_a).sort
 
           hsh = {}
           all_vectors.each do |vector_name|
-            this = self .has_vector?(vector_name) ? self .vector[vector_name] : nil
-            that = other.has_vector?(vector_name) ? other.vector[vector_name] : nil
+            this = self .has_vector?(vector_name) ? self[vector_name] : nil
+            that = other.has_vector?(vector_name) ? other[vector_name] : nil
 
             if this and that
               hsh[vector_name] = this.send(operation, that)
             else
               hsh[vector_name] = Daru::Vector.new([], index: all_indexes, 
\ No newline at end of file