lib/distribution.rb in statsample-0.11.2 vs lib/distribution.rb in statsample-0.12.0

@@ -1,5 +1,9 @@
-require 'statistics2'
+begin
+    require 'statistics2'
+rescue LoadError
+        puts "You should install statistics2"
+end
 # Several distributions modules to calculate cdf, inverse cdf and pdf
 # See Distribution::Pdf for interface.
 # 
 # Usage:
 #    Distribution::Normal.cdf(1.96)