/* *********************************************************************sc.h - creates classifiers from feature vectors of examples, as well as   classifying example feature vectors.Copyright (C) 1991 Dean RubineThis program is free software; you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation; either version 1, or (at your option)any later version.This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See theGNU General Public License for more details.You should have received a copy of the GNU General Public Licensealong with this program (in ../COPYING); if not, write to the FreeSoftware Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.***********************************************************************//* single path classifier*/#ifndef _SC_H_#define _SC_H_#define	MAXSCLASSES	100typedef struct sclassifier *sClassifier; /* single feature-vector classifier */typedef int		    sClassIndex; /* single feature-vector class index */typedef struct sclassdope  *sClassDope;	 /* single feature-vector class dope */struct sclassdope {	char 		*name;	sClassIndex	number;	Vector		average;	Matrix		sumcov;	int		nexamples;};struct sclassifier {	int		nfeatures;	int		nclasses;	sClassDope	*classdope;	Vector		cnst;	/* constant term of discrimination function */	Vector		*w;	/* array of coefficient weights */	Matrix		invavgcov; /* inverse covariance matrix */};sClassifier	sNewClassifier();sClassifier	sRead();		/* FILE *f */void		sWrite();		/* FILE *f; sClassifier sc; */void	 	sFreeClassifier();	/* sc */void		sAddExample();		/* sc, char *classname; Vector y */void		sRemoveExample();	/* sc, classname, y */void		sDoneAdding();		/* sc */sClassDope	sClassify();		/* sc, y */sClassDope	sClassifyAD();		/* sc, y, double *ap; double *dp */sClassDope	sClassNameLookup();	/* sc, classname */double		MahalanobisDistance();	/* Vector v, u; Matrix sigma */void		FixClassifier();void		sDumpClassifier();void		sDistances();#endif