Rubocop auto correct

lib/uplot/plot.rb

@@ -18,7 +18,7 @@ module Uplot
       if series.size == 1
         # If there is only one series, use the line number for label.
         params.title ||= headers[0] if headers
-        labels = Array.new(series[0].size){|i| (i+1).to_s}
+        labels = Array.new(series[0].size) { |i| (i + 1).to_s }
         values = series[0].map(&:to_f)
       else
         params.title ||= headers[1] if headers

lib/uplot/preprocessing.rb

@@ -62,12 +62,10 @@ module Uplot
         else
           arr
         end
+      elsif headers
+        transpose2(arr[1..-1])
       else
-        if headers
+        transpose2(arr)
-          transpose2(arr[1..-1])
-        else
-          transpose2(arr)
-        end
       end
     end