Class expression_histogram¶

`class` expression_histogram<Bins, E, TCount> base ¶

template <size_t Bins, typename E, typename TCount = uint32_t>
struct expression_histogram : public expression_with_traits<E> { … }

Expression that computes a histogram as data flows through it.

Template parameters
Bins	Number of bins, or 0 for runtime-sized bins.
E	Wrapped input expression type.
TCount	Integer type used for bin counts.

`variable` data ¶

mutable histogram_data<Bins, TCount> data{}

Fully qualified name: kfr::expression_histogram<Bins, E, TCount>::data

Declared at base/reduce.hpp:372

`constructor` expression_histogram<Bins, E, TCount>(E &&, size_t) ¶

Constructs a runtime-sized histogram expression.

Parameters
e	Input expression to wrap.
steps	Number of bins. Only used when `Bins` is 0.

Fully qualified name: kfr::expression_histogram<Bins, E, TCount>::expression_histogram<Bins, E, TCount>(E &&, size_t)

Declared at base/reduce.hpp:381

`typedef` value_type ¶

using value_type = typename expression_with_traits<E>::value_type

Fully qualified name: kfr::expression_histogram<Bins, E, TCount>::value_type

Declared at base/reduce.hpp:386

`function` get_elements(const expression_histogram<Bins, E, TCount> &, const shape<expression_with_traits<E>::dims> &, const axis_params<Axis, N> &) ¶

template <index_t Axis, size_t N>
friend KFR_INTRINSIC vec<value_type, N> get_elements(const expression_histogram& self,
                                                     const shape<expression_with_traits<E>::dims>& index,
                                                     const axis_params<Axis, N>& sh)

Fully qualified name: kfr::expression_histogram<Bins, E, TCount>::get_elements(const expression_histogram<Bins, E, TCount> &, const shape<expression_with_traits<E>::dims> &, const axis_params<Axis, N> &)

Declared at base/reduce.hpp:389

Fully qualified name: kfr::expression_histogram<Bins, E, TCount>

Declared at base/reduce.hpp:370

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Class expression_histogram¶