lib/arql/ext/array.rb in arql-0.3.25 vs lib/arql/ext/array.rb in arql-0.3.26

@@ -182,10 +182,10 @@
     define_method(type) do |*args|
       plot_backend = YouPlot::Backends::UnicodePlot
       params = Struct.new(:title, :width, :height, :border, :margin, :padding, :color, :xlabel,
           :ylabel, :labels, :symbol, :xscale, :nbins, :closed, :canvas, :xlim, :ylim, :grid, :name) do
         def to_hc
-          {}
+          to_h.compact
         end
       end.new
       fmt = 'xyy'
       raw_data = map do |e|
         if e.is_a?(Array)