Table 1.
Summary of features included in the machine learning models.
| Category and features | Abbreviation | |
| Time domain | ||
|
|
Mean | M |
|
|
Standard deviation | SD |
|
|
Variance | V |
|
|
Maximum | Max |
|
|
Minimum | Min |
|
|
Range | R |
|
|
Number of peaks | NOP |
|
|
Skewness | SK |
|
|
Kurtosis | KS |
|
|
Correlation coefficient | CORR |
| Frequency domain | ||
|
|
Mean | M |
|
|
Maximum | Max |
|
|
Standard deviation | SD |
|
|
Number of peaks | NOP |
|
|
Average band power | ABP |
|
|
Normalized average band power | NABP |
|
|
Frequency of maximum power spectral density | Fmax |
| Frequency domain in 4-14 Hz range (HTFRa) | ||
|
|
Mean | M |
|
|
Maximum | Max |
|
|
Standard deviation | SD |
|
|
Average band power | ABP |
aHTFR: hand tremor frequency range.