pulsefilter.c File Reference

#include <stdio.h>
#include <math.h>
#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <string.h>
#include <assert.h>
#include <sys/types.h>
#include "common.h"

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Defines
#define	MIN_REG_POINTS   10
#define	FIRST_PASS_RATIO   10.
#define	MIN_WINDOW_LEN   (12*3600)
#define	ALLOC_BLOCK   128
Functions
int	dtcmp (const void *p1, const void *p2)
int	LinearRegression (struct xy *data, int n, double *a, double *b)
	compute the linear regression for the table x[] y[] time origin is supposed to be at the x[0]
void	PulseFilter (char *dtfile, double dtmax)
	read a dt file, filter the time pulses The resulting file is named after the input file, replacing 'dt' by 'flt'

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Define Documentation

#define ALLOC_BLOCK   128

Definition at line 93 of file pulsefilter.c.

Referenced by PulseFilter().

#define FIRST_PASS_RATIO   10.

Definition at line 34 of file pulsefilter.c.

Referenced by PulseFilter().

#define MIN_REG_POINTS   10

Definition at line 33 of file pulsefilter.c.

Referenced by PulseFilter().

#define MIN_WINDOW_LEN   (12*3600)

Definition at line 35 of file pulsefilter.c.

Referenced by PulseFilter().

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Function Documentation

int dtcmp	(	const void *	p1,
		const void *	p2
	)

Definition at line 39 of file pulsefilter.c.

Referenced by PulseFilter().

int LinearRegression	(	struct xy *	data,
		int	n,
		double *	a,
		double *	b
	)

compute the linear regression for the table x[] y[] time origin is supposed to be at the x[0]

Parameters:

	data	the xy (time,dt) values
	n	the number of data (x,y)
	a	slope
	b	y at x=x[0]

Returns:

0 if the computation could be performed, -1 if not

Definition at line 60 of file pulsefilter.c.

Referenced by PulseFilter().

void PulseFilter	(	char *	dtfile,
		double	dtmax
	)

read a dt file, filter the time pulses The resulting file is named after the input file, replacing 'dt' by 'flt'

Parameters:

	dtfile	the file to be filtered
	dtmax	max acceptable dt difference

Definition at line 99 of file pulsefilter.c.

References ALLOC_BLOCK, dtcmp(), FIRST_PASS_RATIO, fout, LinearRegression(), MIN_REG_POINTS, MIN_WINDOW_LEN, ndata, PrintError, PrintWarning, str2time(), and time2str().

Referenced by CloseTimeFile(), and ParseOptions().

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