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From: Eric Niebler (eric_at_[hidden])
Date: 2008-01-30 11:00:59

Neal Becker wrote:
> I see accumulators::density is almost what I want. I need a histogram, but
> it want to specify in advance the number of bins and the bin size. This is
> really a simplified accumulators::density.
> I think it would be good to add this to accumulators::density.

Do these help?

   Number of first samples used to determine min and max.

  Number of bins (two additional bins collect under-
  and overflow samples).

They are named parameters that you can specify to an accumulator_set's

accumulator_set<double, features<tag::density> > acc(
     tag::density::cache_size = 10
     tag::density::num_bins = 20


Eric Niebler
Boost Consulting

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