statistics.c File Reference

#include <volume_io/internal_volume_io.h>
#include <bicpl/numerical.h>
#include <bicpl/data_structures.h>

Include dependency graph for statistics.c:

Go to the source code of this file.

Defines
#define	DEFAULT_N_MEDIAN_BOXES   100000
#define	MAX_SAMPLES_RECORDED   100000
Functions
public void	compute_statistics (int n, Real samples[], Real *min_value, Real *max_value, Real *mean_value, Real *std_dev, Real *median)
public void	initialize_statistics (statistics_struct *stats, Real median_lower_bound, Real median_upper_bound)
public void	add_sample_to_statistics (statistics_struct *stats, Real sample)
private void	get_median (statistics_struct *stats, Real *min_range, Real *max_range)
public void	restart_statistics_with_narrower_median_range (statistics_struct *stats)
public void	get_statistics (statistics_struct *stats, int *n_samples, Real *mean, Real *median, Real *median_error, Real *min_value, Real *max_value, Real *std_deviation)
public void	terminate_statistics (statistics_struct *stats)
public void	compute_mean_and_variance (int n, Real samples[], Real *mean, Real *variance)
public Real	compute_two_means_t_statistic (int n1, Real samples1[], int n2, Real samples2[])

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Define Documentation

#define DEFAULT_N_MEDIAN_BOXES   100000

Definition at line 23 of file statistics.c. Referenced by initialize_statistics().

#define MAX_SAMPLES_RECORDED   100000

Definition at line 25 of file statistics.c. Referenced by add_sample_to_statistics(), get_median(), and terminate_statistics().

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Function Documentation

public void add_sample_to_statistics (  statistics_struct *  stats, Real  sample )

Definition at line 133 of file statistics.c. References statistics_struct::max_median_range, MAX_SAMPLES_RECORDED, statistics_struct::max_value, statistics_struct::median_box_counts, statistics_struct::median_box_values, statistics_struct::min_median_range, statistics_struct::min_value, statistics_struct::n_above_median_range, statistics_struct::n_below_median_range, statistics_struct::n_median_boxes, statistics_struct::n_samples, statistics_struct::samples, statistics_struct::sum_x, and statistics_struct::sum_xx. Referenced by compute_statistics().

public void compute_mean_and_variance (  int  n, Real  samples[], Real *  mean, Real *  variance )

Definition at line 364 of file statistics.c. Referenced by compute_two_means_t_statistic().

public void compute_statistics (  int  n, Real  samples[], Real *  min_value, Real *  max_value, Real *  mean_value, Real *  std_dev, Real *  median )

Definition at line 45 of file statistics.c. References add_sample_to_statistics(), FALSE, get_statistics(), initialize_statistics(), restart_statistics_with_narrower_median_range(), terminate_statistics(), and TRUE.

public Real compute_two_means_t_statistic (  int  n1, Real  samples1[], int  n2, Real  samples2[] )

Definition at line 390 of file statistics.c. References compute_mean_and_variance().

private void get_median (  statistics_struct *  stats, Real *  min_range, Real *  max_range )

Definition at line 182 of file statistics.c. References statistics_struct::max_median_range, MAX_SAMPLES_RECORDED, statistics_struct::max_value, statistics_struct::median_box_counts, statistics_struct::median_box_values, statistics_struct::min_median_range, statistics_struct::min_value, statistics_struct::n_below_median_range, statistics_struct::n_median_boxes, statistics_struct::n_samples, and statistics_struct::samples. Referenced by get_statistics(), and restart_statistics_with_narrower_median_range().

public void get_statistics (  statistics_struct *  stats, int *  n_samples, Real *  mean, Real *  median, Real *  median_error, Real *  min_value, Real *  max_value, Real *  std_deviation )

Definition at line 283 of file statistics.c. References get_median(), statistics_struct::max_value, statistics_struct::min_value, statistics_struct::n_samples, statistics_struct::sum_x, and statistics_struct::sum_xx. Referenced by compute_statistics().

public void initialize_statistics (  statistics_struct *  stats, Real  median_lower_bound, Real  median_upper_bound )

Definition at line 105 of file statistics.c. References DEFAULT_N_MEDIAN_BOXES, statistics_struct::max_median_range, statistics_struct::median_box_counts, statistics_struct::median_box_values, statistics_struct::min_median_range, statistics_struct::n_above_median_range, statistics_struct::n_below_median_range, statistics_struct::n_median_boxes, statistics_struct::n_samples, statistics_struct::sum_x, and statistics_struct::sum_xx. Referenced by compute_statistics(), and restart_statistics_with_narrower_median_range().

public void restart_statistics_with_narrower_median_range (  statistics_struct *  stats  )

Definition at line 264 of file statistics.c. References get_median(), initialize_statistics(), statistics_struct::max_median_range, statistics_struct::min_median_range, and terminate_statistics(). Referenced by compute_statistics().

public void terminate_statistics (  statistics_struct *  stats  )

Definition at line 351 of file statistics.c. References statistics_struct::max_median_range, MAX_SAMPLES_RECORDED, statistics_struct::median_box_counts, statistics_struct::median_box_values, statistics_struct::min_median_range, statistics_struct::n_samples, and statistics_struct::samples. Referenced by compute_statistics(), and restart_statistics_with_narrower_median_range().

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