Statistic_test Class Reference

Description

Test:

verifies the proper working of statistic helper functions.

• calculate mean and standard derivation
• one-dimensional linear regression

  See also

  DataCSV_test.hpp

  statistic.hpp

Definition at line 51 of file statistic-test.cpp.

Private Member Functions
void	check_baseStatistics ()
void	check_TimeSeriesLinearRegression ()
void	check_wightedLinearRegression ()
void	demonstrate_DataSpan ()
void	run (Arg)

Member Function Documentation

demonstrate_DataSpan()

void demonstrate_DataSpan ( )

inlineprivate

Test:

a simplified preview on C++20 ranges

Definition at line 66 of file statistic-test.cpp.

check_baseStatistics()

void check_baseStatistics ( )

inlineprivate

Test:

helpers to calculate mean and standard derivation

Definition at line 95 of file statistic-test.cpp.

check_wightedLinearRegression()

void check_wightedLinearRegression ( )

inlineprivate

Test:

attribute a weight to each data point going into linear regression

• using a simple scenario with three points
• a line with gradients would run through the end points (1,1) ⟶ (5,5)
• but we have a middle point, offset by -2 and with double weight
• thus the regression line is overall shifted by -1
• standard derivation is √3 and correlation 81% (both plausible and manually checked

Definition at line 128 of file statistic-test.cpp.

check_TimeSeriesLinearRegression()

void check_TimeSeriesLinearRegression ( )

inlineprivate

Test:

regression over a series of measurement data

• use greater mount of data generated with randomness
• actually a power function is hidden in the data

Definition at line 157 of file statistic-test.cpp.

Inheritance diagram for Statistic_test:

Collaboration diagram for Statistic_test:

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

• statistic-test.cpp