diff options
Diffstat (limited to 'boost/accumulators/statistics/skewness.hpp')
| -rw-r--r-- | boost/accumulators/statistics/skewness.hpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/boost/accumulators/statistics/skewness.hpp b/boost/accumulators/statistics/skewness.hpp index 2e29018f5d..c383ec4a6c 100644 --- a/boost/accumulators/statistics/skewness.hpp +++ b/boost/accumulators/statistics/skewness.hpp @@ -31,7 +31,7 @@ namespace impl @brief Skewness estimation The skewness of a sample distribution is defined as the ratio of the 3rd central moment and the \f$ 3/2 \f$-th power - of the 2nd central moment (the variance) of the sampless 3. The skewness can also be expressed by the simple moments: + of the 2nd central moment (the variance) of the samples 3. The skewness can also be expressed by the simple moments: \f[ \hat{g}_1 = @@ -48,7 +48,7 @@ namespace impl : accumulator_base { // for boost::result_of - typedef typename numeric::functional::average<Sample, Sample>::result_type result_type; + typedef typename numeric::functional::fdiv<Sample, Sample>::result_type result_type; skewness_impl(dont_care) { @@ -57,7 +57,7 @@ namespace impl template<typename Args> result_type result(Args const &args) const { - return numeric::average( + return numeric::fdiv( accumulators::moment<3>(args) - 3. * accumulators::moment<2>(args) * mean(args) + 2. * mean(args) * mean(args) * mean(args) |