| Standard deviation |
Reflect the signal variance around its mean value. |
| Skewness |
Describe the asymmetry of amplitude distribution about mean. |
| Kurtosis |
Describe the peakness of the distribution relative to normal distribution. |
| Information-Theoretic Domain Features |
| Lempel-Ziv Complexity |
Describe the randomness of a signal. |
| Entropy rate |
Evaluate the degree of regularity of the signal distribution. |
| Frequency Domain Features |
| Peak frequency (Hz) |
Describe the frequency of maximum power. |
| Spectral centroid (Hz) |
Evaluate the median of the spectrum of the signal. |
| Bandwidth (Hz) |
Describe the range of frequencies of a signal. |
| Time-Frequency Domain Features |
| Wavelet entropy |
Evalute the disorderly behavior for non-stationary signal. |
