/*****************************************************************/
/*							         */
/*   Copyright (c) Quinn-Curtis, 1991, 1992                      */
/*							         */
/*   Filename:  RTCURVEF.H                                       */
/*   Revision:  2.5                                              */
/*   Date:      12/15/91                                          */
/*							         */
/*   Description: -Routines for simultaneous equations           */
/*     	          -multiple regression                           */
/*                -polynomial curvefitting                       */
/*****************************************************************/

#ifdef __cplusplus
extern "C" {
#endif


#ifndef realtype
#include "rtstdhdr.h"
#endif

void rtgaussjordan( matstruct *coefary,
		    matstruct *constary,
		    int numcol,
		    matstruct *solcoef,
		    matstruct *invary,
		    realtype *det,
		    int  *error);
void rtgetminmax(matstruct *dataset,
                  int numdat,
                  realtype *minval,
                  realtype *maxval,
                  realtype *range);

void rtmatmean(matstruct *datary,
                    int numrow,
                    realtype *sumx,
                    realtype *mean);

void rtmatstd(matstruct *datary,
                   realtype mean,
                   int numrow,
                   realtype *variance,
		   realtype *stddev);
void rtmultiplereg( matstruct *indvardat,
		    matstruct *depvardat,
		    int  numiv,
		    int  numobs,
		    int  zflag,
		    matstruct *regcoef,
		    matstruct *yest,
		    matstruct *resid,
		    realtype *see,
		    matstruct *coefsig,
                    realtype *rsq,
                    realtype *r,
		    int *regerror);

void rtpolycurvefit(matstruct  *indvar,
		    matstruct  *depvar,
		    int numobs,
		    int order,
		    int zerof,
		    matstruct  *coef,
		    matstruct  *yest,
		    matstruct  *resid,
		    realtype *see,
		    matstruct *coefsig,
		    realtype *rsq,
		    realtype *r,
		    int *cferror);


#ifdef __cplusplus
}
#endif