| 1 |
< |
/* Copyright (c) 1991 Regents of the University of California */ |
| 2 |
< |
|
| 3 |
< |
/* SCCSid "$SunId$ LBL" */ |
| 4 |
< |
|
| 1 |
> |
/* RCSid $Id$ */ |
| 2 |
|
/* |
| 3 |
|
* Header file for linear regression calculation. |
| 4 |
|
*/ |
| 5 |
+ |
#ifndef _RAD_LINEGR_H_ |
| 6 |
+ |
#define _RAD_LINEGR_H_ |
| 7 |
+ |
#ifdef __cplusplus |
| 8 |
+ |
extern "C" { |
| 9 |
+ |
#endif |
| 10 |
|
|
| 11 |
|
typedef struct { |
| 12 |
|
double xs, ys, xxs, yys, xys; |
| 26 |
|
#define lryvar(l) (((l)->yys-(l)->ys*(l)->ys/(l)->n)/(l)->n) |
| 27 |
|
#define lrxdev(l) sqrt(((l)->xxs-(l)->xs*(l)->xs/(l)->n)/((l)->n-1)) |
| 28 |
|
#define lrydev(l) sqrt(((l)->yys-(l)->ys*(l)->ys/(l)->n)/((l)->n-1)) |
| 29 |
+ |
|
| 30 |
+ |
|
| 31 |
+ |
extern void lrclear(LRSUM *l); |
| 32 |
+ |
extern int flrpoint(double x, double y, LRSUM *l); |
| 33 |
+ |
extern int lrfit(LRLIN *r, LRSUM *l); |
| 34 |
+ |
|
| 35 |
+ |
|
| 36 |
+ |
#ifdef __cplusplus |
| 37 |
+ |
} |
| 38 |
+ |
#endif |
| 39 |
+ |
#endif /* _RAD_LINEGR_H_ */ |
| 40 |
+ |
|
