lib/ddmetrics/stats.rb in ddmetrics-1.0.1 vs lib/ddmetrics/stats.rb in ddmetrics-1.1.0

@@ -20,10 +20,11 @@
       @values.size
     end
 
     def sum
       raise EmptyError if @values.empty?
+
       @values.reduce(:+)
     end
 
     def avg
       sum.to_f / count
@@ -40,10 +41,10 @@
     def quantile(fraction)
       raise EmptyError if @values.empty?
 
       target = (@values.size - 1) * fraction.to_f
       interp = target % 1.0
-      sorted_values[target.floor] * (1.0 - interp) + sorted_values[target.ceil] * interp
+      (sorted_values[target.floor] * (1.0 - interp)) + (sorted_values[target.ceil] * interp)
     end
 
     private
 
     def sorted_values