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BDS test

Purpose
Description
Tips
Macro Synopsis
Modules
Related Functions
References


Purpose

Determinism test

Description

"BDS test" examines whether the given signal is deterministic or stochastic. It is based on a calculation of the Correlation integral .

If the test value

with a known distribution function is significantly different from a standard normal distribution, it can be concluded that the given signal is deterministic. The decision whether a significant difference of the distribution functions is given can be made performing a Gauss test (Test for non-normal-distributed data).

The F(m) values are returned as a signal and displayed in the message window as well.

The signal returned from BDS test contains F(m).

Parameters are


Note that since this function operates on a 'pure' time series, the scale and the shift of the given signal do not affect the result.


Tips

Typically, the relative radius should be about 0.1 or 0.2.

Macro Synopsis

y = BDSTest(x,mmax,r);
signal x,y;
int mmax;
float r;

Modules

Statistics

Related Functions

Correlation integral, Kolmogorov-Smirnov test, Test for different histograms, Test for different means, Test for different variances, Test for non-normal-distributed data, Test for non-white-noise, Test for the mean of a Gaussian, Test for the variance of a Gaussian, Wilcoxon test.

References

Brock et al. [18]