reduce all elements to a single number More...

#include <tensorOp.h>

Inheritance diagram for civita::ReduceAllOp:

Collaboration diagram for civita::ReduceAllOp:

Public Member Functions
void	setArgument (const TensorPtr &a, const ITensor::Args &) override

template<class F >
	ReduceAllOp (F f, double init, const std::shared_ptr< ITensor > &arg={})

double	operator[] (std::size_t) const override
	return or compute data at a location More...

Timestamp	timestamp () const override
	timestamp indicating how old the dependendent data might be. Used in CachedTensorOp to determine when to invalidate the cache More...

Public Member Functions inherited from civita::ITensor
	CLASSDESC_ACCESS (ITensor)

	ITensor ()

	ITensor (const Hypercube &hc)

	ITensor (Hypercube &&hc)

	ITensor (const std::vector< unsigned > &dims)

	ITensor (const ITensor &)=default

	ITensor (ITensor &&)=default

ITensor &	operator= (const ITensor &)=default

ITensor &	operator= (ITensor &&)=default

virtual	~ITensor ()

virtual const Hypercube &	hypercube () const
	information describing the axes, types and labels of this tensor More...

virtual const Hypercube &	hypercube (const Hypercube &hc)

virtual const Hypercube &	hypercube (Hypercube &&hc)

std::size_t	rank () const

std::vector< unsigned >	shape () const

void	imposeDimensions (const Dimensions &dimensions)
	impose dimensions according to dimension map dimensions More...

virtual const Index &	index () const
	the index vector - assumed to be ordered and unique More...

virtual std::size_t	size () const
	return number of elements in tensor - maybe less than hypercube.numElements if sparse More...

double	atHCIndex (std::size_t hcIdx) const
	returns the data value at hypercube index hcIdx, or NaN if More...

template<class T >
std::size_t	hcIndex (const std::initializer_list< T > &indices) const

template<class T >
double	operator() (const std::initializer_list< T > &indices) const

virtual void	setArguments (const TensorPtr &, const TensorPtr &, const ITensor::Args &args={})

virtual void	setArguments (const std::vector< TensorPtr > &a, const ITensor::Args &args={"", 0})

virtual void	setArguments (const std::vector< TensorPtr > &a1, const std::vector< TensorPtr > &a2, const ITensor::Args &args={"", 0})

Public Attributes
std::function< void(double &, double, std::size_t)>	f

double	init

std::shared_ptr< ITensor >	arg

Additional Inherited Members
Public Types inherited from civita::ITensor
using	Timestamp = std::chrono::time_point< std::chrono::high_resolution_clock >

Protected Member Functions inherited from civita::ITensor
void	notImpl () const

Protected Attributes inherited from civita::ITensor
Hypercube	m_hypercube

Index	m_index

Detailed Description

reduce all elements to a single number

Definition at line 96 of file tensorOp.h.

Constructor & Destructor Documentation

◆ ReduceAllOp()

template<class F >

civita::ReduceAllOp::ReduceAllOp	(	F	f,
		double	init,
		const std::shared_ptr< ITensor > &	arg = `{}`
	)

inline

Definition at line 104 of file tensorOp.h.

104 {}):

105 f(f),init(init), arg(arg) {}

civita::ReduceAllOp::arg

std::shared_ptr< ITensor > arg

Definition: tensorOp.h:100

civita::ReduceAllOp::init

double init

Definition: tensorOp.h:99

civita::ReduceAllOp::f

std::function< void(double &, double, std::size_t)> f

Definition: tensorOp.h:98

Member Function Documentation

◆ operator[]()

double civita::ReduceAllOp::operator[] ( std::size_t ) const

overridevirtual

return or compute data at a location

Implements civita::ITensor.

Reimplemented in civita::StdDeviation, civita::Average, and civita::ReductionOp.

Definition at line 90 of file tensorOp.cc.

References f, and minsky::anonymous_namespace{userFunction.cc}::isnan().

   {
     double r=init;
     for (size_t i=0; i<arg->size(); ++i)
       {
         double x=(*arg)[i];
         if (!isnan(x)) f(r,x,i);
       }
     return r;
   }