lib/distribution/exponential.rb in distribution-0.4.0 vs lib/distribution/exponential.rb in distribution-0.5.0

@@ -14,9 +14,13 @@
   # Parameter +l+ is the rate parameter, the number of occurrences/unit time.
   module Exponential
     SHORTHAND='expo'
     extend Distributable
     create_distribution_methods
+    ##
+    # :singleton-method: rng(l)
+    # Returns a lambda, which generates exponential variates
+    # with +l+ as rate parameter
 
     ##
     # :singleton-method: pdf(x,l)
     # PDF of exponential distribution, with parameters +x+ and +l+.
     # +l+ is rate parameter