Revision history for Perl extension Statistics::Descriptive::Weighted.

0.8 Fixed version in META.yml, and a bug that caused get_data to fail
when the data minimum is zero

0.40 Feb 2009 

     - Redefinition of variance() and standard_deviation() (to
standard definitions of the unbiased estimators of those quantities,
and addition of biased_variance() and biased_standard_deviation().

0.30 Dec 2008 
     - Fixed an error in the SYNOPSIS regarding percentile. Added
more attribution to Andrew Johnson for Tree::Treap. Added contact
information. Fixed errors in Description. 

0.20 December 2008
     - Ported to Module::Install to fix Tree::Treap.pm provided dependency
testing bug

0.10 December 2008
     - Initital release
