Niitsuma Hirotaka wrote:

Now I am trying to describe Boost.accumulators. roc_distribution

To define ROC curve data, we need two p_square_cumulative_distribution 1. cumulative_distribution ture or false potive 2. cumulative_distribution ture or false negative One of the cumulative_distribution can be defined by using dependencies

struct roc_distribution : depends_on< p_square_cumulative_distribution > …

But I can not find way to use two different cumulative_distribution in single acc class. How to use two different cumulative_distribution in single acc class like the following ?

struct roc_distribution_impl...

{ template<typename Args> void operator ()(Args const &args,bool positive_or_negative) if(positive_or_negative) positive_p_square_cumulative_distribution … else negative_p_square_cumulative_distribution … … }

Could you please send a complete program that demonstrates the problem? Thanks. -- Eric Niebler Boost Consulting www.boost-consulting.com