stats.c File Reference

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Detailed Description

Statistics routines.

Author:

Raphael Manfredi

Date:

2004

#include "common.h"
#include <math.h>
#include "stats.h"
#include "walloc.h"
#include "override.h"

Data Structures
struct	statx
	A one-dimension container (x). More...
Typedefs
typedef enum op	stats_op_t
Enumerations
enum	op { STATS_OP_REMOVE = -1, STATS_OP_ADD = +1 }
Functions
	RCSID ("$Id:stats.c, v 1.5 2005/06/25 01:37:43 daichik Exp $")
gpointer	statx_make (void)
	Create one-dimension container.
void	statx_free (gpointer ox)
	Destroy one-dimension container.
void	statx_clear (gpointer ox)
	Clear container.
void	statx_opx (struct statx *sx, gdouble val, stats_op_t op)
	Add/substract one data point.
void	statx_add (gpointer ox, gdouble val)
	Add data point to container.
void	statx_remove (gpointer ox, gdouble val)
	Remove data point from container.
gint	statx_n (gpointer ox)
gdouble	statx_avg (gpointer ox)
gdouble	statx_sdev (gpointer ox)
gdouble	statx_var (gpointer ox)
gdouble *	statx_data (gpointer ox)

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Typedef Documentation

typedef enum op stats_op_t

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Enumeration Type Documentation

enum op

Enumeration values: STATS_OP_REMOVE  STATS_OP_ADD

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Function Documentation

RCSID (  "$Id:stats.  c, v 1.5 2005/06/25 01:37:43 daichik Exp $"  )

void statx_add (  gpointer  ox, gdouble  val )

Add data point to container.

gdouble statx_avg (  gpointer  ox  )

Returns: average of data points.

void statx_clear (  gpointer  ox  )

Clear container.

gdouble* statx_data (  gpointer  ox  )

Returns: an array of datapoints which can be freed when done.

void statx_free (  gpointer  ox  )

Destroy one-dimension container.

gpointer statx_make (  void   )

Create one-dimension container.

gint statx_n (  gpointer  ox  )

Returns: amount of data points.

void statx_opx (  struct statx *  sx, gdouble  val, stats_op_t  op )  [static]

Add/substract one data point. Parameters: sx  the container val  the value to add/remove op  the operation: STATS_OP_ADD or STATS_OP_REMOVE

void statx_remove (  gpointer  ox, gdouble  val )

Remove data point from container.

gdouble statx_sdev (  gpointer  ox  )

Returns: the standard deviation of the data points.

gdouble statx_var (  gpointer  ox  )

Returns: the variance of the data points.

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