[Boost-bugs] [Boost C++ Libraries] #7150: What effect does the mean tag have on variance

Subject: [Boost-bugs] [Boost C++ Libraries] #7150: What effect does the mean tag have on variance
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-07-19 01:18:27

#7150: What effect does the mean tag have on variance
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 Reporter:  colmearley@…          |       Owner:  eric_niebler
     Type:  Support Requests      |      Status:  new         
Milestone:  To Be Determined      |   Component:  accumulator 
  Version:  Boost 1.49.0          |    Severity:  Problem     
 Keywords:                        |  
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 typedef accumulator_set<double, stats<tag::variance> > Var;
 typedef accumulator_set<double, stats<tag::variance, tag::mean> > VarMean;

 Each of these constructs results in a different variance result. It is my
 understanding that they should be the same. Could you please tell me what
 I am missing?

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/7150>
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