lib/rbbt/util/R/plot.rb in rbbt-util-5.19.7 vs lib/rbbt/util/R/plot.rb in rbbt-util-5.19.8

@@ -17,9 +17,10 @@
           values = v
           break
         end
         values = [values] unless Array === values
         field_classes = values.collect do |v| 
+          v = v.first if Array === v
           case v
           when FalseClass, TrueClass
             "'logical'"
           when Fixnum, Float
             "'numeric'"