Dataset reader. More...

#include <dataset.h>

Public Types
typedef vector< vector< DataSet::node > >	node2d

Public Member Functions
	DataSet (const DataSet::node2d &instances, int n_features, const vector< float_type > &y)

void	load_from_file (string file_name)
	load dataset from file

void	load_from_python (float y, char *x, int len)
	load dataset from python

void	group_classes (bool classification=true)
	group instances in same class

size_t	n_instances () const

size_t	n_features () const

size_t	n_classes () const

const vector< int > &	count () const
	the number of instances for each class

const vector< int > &	start () const
	the start position of instances for each class

const vector< int > &	label () const
	mapping logical label (0,1,2,3,...) to real label (maybe 2,4,5,6,...)

const vector< float_type > &	y () const
	label for each instances, the instances are arranged as they are in file

const node2d &	instances () const

const node2d	instances (int y_i) const
	instances of class \(y_i\)

const node2d	instances (int y_i, int y_j) const
	instances of class \(y_i\) and \(y_j\)

const vector< int >	original_index () const
	mapping instance index (after grouped) to the original index (in file)

const vector< int >	original_index (int y_i) const

const vector< int >	original_index (int y_i, int y_j) const

Detailed Description

Dataset reader.

Constructor & Destructor Documentation

construct a dataset using given instances

Parameters

instances	given instances
n_features	the number of features of given instances
y	the label of each instances

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