turi::groupby_operators::count Class Reference

#include <core/storage/sframe_data/groupby_aggregate_operators.hpp>

Public Member Functions
group_aggregate_value *	new_instance () const
	Returns a new empty instance of count.
void	add_element_simple (const flexible_type &flex)
void	combine (const group_aggregate_value &other)
	combines two partial counts
flexible_type	emit () const
	Emits the count result.
bool	support_type (flex_type_enum type) const
	The types supported by the count. (everything)
flex_type_enum	set_input_types (const std::vector< flex_type_enum > &types)
	The input type.
std::string	name () const
	Name of the class.
void	save (oarchive &oarc) const
	Serializer.
void	load (iarchive &iarc)
	Deserializer.
virtual void	add_element (const std::vector< flexible_type > &values)
virtual void	partial_finalize ()
virtual void	print (std::ostream &os) const

Detailed Description

Implements a count aggregator

Definition at line 523 of file groupby_aggregate_operators.hpp.

Member Function Documentation

add_element()

virtual void turi::group_aggregate_value::add_element ( const std::vector< flexible_type > &  values )

inlinevirtualinherited

Adds an element to the aggregate. Elements to be added will be either the input_type (as set by set_input_type()) or UNDEFINED.

Operator that expects more than one input values need to overwrite this function

Reimplemented in turi::groupby_operators::zip_dict, turi::groupby_operators::argmax, and turi::groupby_operators::argmin.

Definition at line 60 of file group_aggregate_value.hpp.

add_element_simple()

void turi::groupby_operators::count::add_element_simple ( const flexible_type &  flex )

inlinevirtual

Adds an element to the aggregate. Simple version of add_element where there is only one input value for the operator

Implements turi::group_aggregate_value.

Definition at line 531 of file groupby_aggregate_operators.hpp.

partial_finalize()

virtual void turi::group_aggregate_value::partial_finalize ( )

inlinevirtualinherited

No more elements will be added to this value. However, this value may still be combined with other values.

Reimplemented in turi::groupby_operators::quantile.

Definition at line 75 of file group_aggregate_value.hpp.

print()

virtual void turi::group_aggregate_value::print ( std::ostream &  os ) const

inlinevirtualinherited

Override this function for allowing the operator to be easily printed.

std::cout << aggregator <<s std::endl;

Reimplemented in turi::groupby_operators::variance.

Definition at line 134 of file group_aggregate_value.hpp.

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The documentation for this class was generated from the following file:

• core/storage/sframe_data/groupby_aggregate_operators.hpp