text: #ifndef _ELNET_UTIL_H
  #define	_ELNET_UTIL_H
  
  #ifdef	__cplusplus
  extern "C" {
  #endif
  
      void standardise_data(double **x, double *y, int N, int p,
                            double *xm, double *xs,
                            double *ym, double *ys);
  
      double **new_matrix(int n, int m);
      double **copy_matrix(double **x, int n, int m);
      void     release_matrix(double **x);
  
      double *new_vector(int n);
      double *copy_vector(double *x, int n);
      void    release_vector(double *x);
  
  #ifdef	__cplusplus
  }
  #endif
  
  #endif
  