#ifndef INCLUDE_RWEIGHT
#define INCLUDE_RWEIGHT

#include "matrix.h"
#include "vec2.h"


class Rweight{
private:
	int N ;
	Matrix W ;
public:
	Rweight( int n ) ;
	void projection( const vector<double>& data ) ; // XW^T
	Matrix get( int j , int i ) const ;
};

#endif