A container that supports probabilistic sampling over weighted data. More...

Classes
class	Element
	A class that will hold data contained in the PDF. More...

Public Member Functions
	PDF ()=default
	Constructs an empty PDF.

	PDF (const std::vector< _T > &d, const std::vector< double > &weights)
	Constructs a PDF containing a given vector of data with given weights.

	~PDF ()
	Destructor. Clears allocated memory.

const std::vector< Element * > &	getElements ()
	Get the current set of stored elements.

Element *	add (const _T &d, const double w)
	Adds a piece of data with a given weight to the PDF. Returns a corresponding Element, which can be used to subsequently update or remove the data from the PDF.

_T &	sample (double r) const
	Returns a piece of data from the PDF according to the input sampling value, which must be between 0 and 1.

void	update (Element *elem, const double w)
	Updates the data in the given Element with a new weight value.

double	getWeight (const Element *elem) const
	Returns the current weight of the given Element.

void	remove (Element *elem)
	Removes the data in the given Element from the PDF. After calling this function, the Element object should no longer be used.

void	clear ()
	Clears the PDF.

std::size_t	size () const
	Returns the number of elements in the PDF.

const _T &	operator[] (unsigned int i) const
	Returns indexed data from the PDF, according to order of insertion.

bool	empty () const
	Returns whether the PDF contains no data.

void	printTree (std::ostream &out=std::cout) const
	Prints the PDF tree to a given output stream. Used for debugging purposes.

Detailed Description

A container that supports probabilistic sampling over weighted data.

Definition at line 80 of file PDF.h.

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

Classes