/// Return a Histogram based on previously set information. Throws if
/// information is incomplete are inconsisten.
Histogram HistogramBuilder::build() const {
if (!m_x)
throw std::runtime_error("HistogramBuilder: No X data has been set");
if (!m_y)
throw std::runtime_error("HistogramBuilder: No Y data has been set");
std::unique_ptr<Histogram> histogram;
if (getHistogramXMode(m_x->size(), m_y->size()) ==
Histogram::XMode::BinEdges) {
if (m_isDistribution)
histogram =
Kernel::make_unique<Histogram>(BinEdges(m_x), Frequencies(m_y));
else
histogram = Kernel::make_unique<Histogram>(BinEdges(m_x), Counts(m_y));
} else {
if (m_isDistribution)
histogram = Kernel::make_unique<Histogram>(Points(m_x), Frequencies(m_y));
else
histogram = Kernel::make_unique<Histogram>(Points(m_x), Counts(m_y));
}
if (m_e)
histogram->setSharedE(m_e);
return *histogram;
}
/** Create view with all duplicate rows omitted
*
* This view operation is based on a read-only custom viewer.
*/
c4_View c4_View::Unique() const
{
c4_IntProp count ("#N#");
return Counts(Clone(), count).ProjectWithout(count);
}