// file: $isip/class/pr/Kpca/Kpca.h
// version: $Id: Kpca.h,v
//

// make sure definitions are only made once
//
#ifndef ISIP_KPCA
#define ISIP_KPCA

#ifndef ISIP_VECTOR_DOUBLE
#include <VectorDouble.h>
#endif

#ifndef ISIP_MATRIX_DOUBLE
#include <MatrixDouble.h>
#endif

#ifndef ISIP_VECTOR
#include <Vector.h>
#endif

boolean compute(MatrixDouble& features_a, MatrixDouble& test_features_a,
		const Vector<VectorDouble>& patterns_a,
		const Vector<VectorDouble>& test_patterns_a);

boolean computeEigen(VectorDouble& eigenvals, MatrixDouble& eigenvecs,
		     const MatrixDouble& input);
long chooseEigenNum(const VectorDouble& eigenvals);

boolean eval(const char* filename);

boolean kernel(MatrixDouble& output,
	       const Vector<VectorDouble>& patterns,
	       const Vector<VectorDouble>& test_patterns,
	       boolean self = false);

//end of include file
//
#endif