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# ACE_Basic_Stats Class Reference

Compute the average and standard deviation (aka jitter) for an arbitrary number of samples, using constant space. More...

`#include <Basic_Stats.h>`

Inheritance diagram for ACE_Basic_Stats:

[legend]
List of all members.

## Public Methods
| ACE_Basic_Stats (void)
| The number of samples is pre-allocated, and cannot changes once the class is initialized. More...
ACE_UINT32 | samples_count (void) const
| The number of samples received so far. More...
void | sample (ACE_UINT64 value)
| Record one sample. More...
void | accumulate (const ACE_Basic_Stats &rhs)
  | Update the values to reflect the stats in Parameters:
  rhs. |
More...
void | dump_results (const ACE_TCHAR *msg, ACE_UINT32 scale_factor) const
| Prints out the results, using. More...
## Private Attributes
ACE_UINT32 | samples_count_
| The number of samples. More...
ACE_UINT64 | min_
| The minimum value. More...
ACE_UINT32 | min_at_
| The number of the sample that had the minimum value. More...
ACE_UINT64 | max_
| The maximum value. More...
ACE_UINT32 | max_at_
| The number of the sample that had the maximum value. More...
ACE_UINT64 | sum_
| The sum of all the values. More...
ACE_UINT64 | sum2_
| The sum of the square of all the values. More...

## Detailed Description

Compute the average and standard deviation (aka jitter) for an arbitrary number of samples, using constant space.

Normally used for latency statistics.

## Constructor & Destructor Documentation

ACE_INLINE ACE_Basic_Stats::ACE_Basic_Stats | ( | void |  | ) |

| The number of samples is pre-allocated, and cannot changes once the class is initialized.

## Member Function Documentation

void ACE_Basic_Stats::accumulate | ( | const ACE_Basic_Stats & | rhs | ) |

  | Update the values to reflect the stats in Parameters:
  rhs. |

void ACE_Basic_Stats::dump_results | ( | const ACE_TCHAR * | msg,
|  | ACE_UINT32 | sf
| ) | const

  | Prints out the results, using. Parameters:
  msg | as a prefix for each message and scaling all the numbers by
  scale_factor. | The latter is useful because high resolution timer samples are acquired in clock ticks, but often presented in microseconds.

ACE_INLINE void ACE_Basic_Stats::sample | ( | ACE_UINT64 | value | ) |

| Record one sample.

ACE_INLINE ACE_UINT32 ACE_Basic_Stats::samples_count | ( | void |  | ) | const

| The number of samples received so far.

## Member Data Documentation

ACE_UINT64 ACE_Basic_Stats::max_`[private]`

| The maximum value.

ACE_UINT32 ACE_Basic_Stats::max_at_`[private]`

| The number of the sample that had the maximum value.

ACE_UINT64 ACE_Basic_Stats::min_`[private]`

| The minimum value.

ACE_UINT32 ACE_Basic_Stats::min_at_`[private]`

| The number of the sample that had the minimum value.

ACE_UINT32 ACE_Basic_Stats::samples_count_`[private]`

| The number of samples.

ACE_UINT64 ACE_Basic_Stats::sum2_`[private]`

| The sum of the square of all the values.

ACE_UINT64 ACE_Basic_Stats::sum_`[private]`

| The sum of all the values.

The documentation for this class was generated from the following files:

- Basic_Stats.h
- Basic_Stats.cpp
- Basic_Stats.inl