#ifndef PCA_H_
#define PCA_H_

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <memory.h>
#define MAX_NAME_LEN 255

struct PCA_Data
{
	int number_input;
	int number_sample;
	double **x;
	double *y;
};

struct PCA_Param
{
	int number_input;				//原始特征個數(shù)
	double eps;
	int max_iter;
	double t;						//主元特征值閾值
	int number_pc;					//主元個數(shù)

	char data_set_name[MAX_NAME_LEN];
};

double eejcb(double a[],int n,double v[],double eps,int jt);
void AllocPCAData(PCA_Data &data);
void FreePCAData(PCA_Data &data);
int PCA(PCA_Param param, PCA_Data o_data);
void DataTransform(PCA_Param param, PCA_Data o_data);
#endif