- The Open Motion Planning Library
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A container that supports probabilistic sampling over weighted data. More...
#include <PDF.h>
Classes | |
| class | Element |
| A class that will hold data contained in the PDF. More... | |
Public Member Functions | |
| PDF (void) | |
| 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 (void) | |
| Destructor. Clears allocated memory. | |
| 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. | |
| const _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. | |
| 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 (void) |
| Clears the PDF. | |
| std::size_t | size (void) const |
| Returns the number of elements in the PDF. | |
| bool | empty (void) 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. | |
A container that supports probabilistic sampling over weighted data.