Hello, I try to create a complex accumulator. I would like to use an accumulator for a box plot with the whisker data ( http://en.wikipedia.org/wiki/Box_plot ). My typedef shows at the momen like this: typedef boost::accumulators::accumulator_set

...

Accumulator;

I would like to create the 25% & 75% quantil and replace the median with the 50% quantil, so I have defined the ctor accumulator call like this: boost::array probs = {0.25, 0.5, 0.75}; m_times[p_name] = Accumulator( boost::accumulators::extended_p_square_probabilities = probs ); (the median is disabled and m_times is a std::map). At this point I get a compiler errors: /Developer/opt/Boost/1.53.0/include/boost/accumulators/statistics/extended_p_square.hpp: In constructor 'boost::accumulators::impl::extended_p_square_impl<Sample>::extended_p_square_impl(const Args&) [with Args = boost::parameter::aux::arg_list, void> >, boost::parameter::aux::empty_arg_list>, Sample = double]': /Developer/opt/Boost/1.53.0/include/boost/accumulators/framework/depends_on.hpp:319: instantiated from 'boost::accumulators::detail::accumulator_wrapper::accumulator_wrapper(const Args&) [with Args = boost::parameter::aux::arg_list, void> >, boost::parameter::aux::empty_arg_list>, Accumulator = boost::accumulators::impl::extended_p_square_impl<double>, Feature = boost::accumulators::tag::extended_p_square]' .... I need one accumulator for all the data. I'm using Boost 1.53. How can I create working code? Thanks for help Phil