| title | author | date | output |
|---|---|---|---|
Feature Definitions |
Thanneer Malai Perumal |
Mon Jun 26 17:46:41 2017 |
html_document |
| Feature Name | Definition |
|---|---|
| meanTapInter | mean tapping interval |
| medianTapInter | median tapping interval |
| iqrTapInter | interquartile range tapping interval |
| minTapInter | minimum tapping interval |
| maxTapInter | maximum tapping interval |
| skewTapInter | skewness tapping interval |
| kurTapInter | kurtosis tapping interval |
| sdTapInter | standard deviation tapping interval |
| madTapInter | mean absolute deviation tapping interval |
| cvTapInter | coefficient of variation tapping interval |
| rangeTapInter | range tapping interval |
| tkeoTapInter | teager-kaiser energy operator tapping interval |
| ar1TapInter | autocorrelation (lag = 1) tapping interval |
| ar2TapInter | autocorrelation (lag = 2) tapping interval |
| fatigue10TapInter | difference in mean tapping interval between the first and last 10% of the tapping interval series |
| fatigue25TapInter | difference in mean tapping interval between the first and last 25% of the tapping interval series |
| fatigue50TapInter | difference in mean tapping interval between the first and last 50% of the tapping interval series |
| meanDriftLeft | mean drift in the left button |
| medianDriftLeft | median drift in the left button |
| iqrDriftLeft | interquartile range of drift in the left button |
| minDriftLeft | minimum of drift in the left button |
| maxDriftLeft | maximum of drift in the left button |
| skewDriftLeft | skewness of drift in the left button |
| kurDriftLeft | kurtosis of drift in the left button |
| sdDriftLeft | standard deviation of drift in the left button |
| madDriftLeft | mean absolute deviation of drift in the left button |
| cvDriftLeft | coefficient of variation of drift in the left button |
| rangeDriftLeft | range of drift in the left button |
| meanDriftRight | mean drift in the right button |
| medianDriftRight | median drift in the right button |
| iqrDriftRight | interquartile range of drift in the right button |
| minDriftRight | minimum of drift in the right button |
| maxDriftRight | maximum of drift in the right button |
| skewDriftRight | skewness of drift in the right button |
| kurDriftRight | kurtosis of drift in the right button |
| sdDriftRight | standard deviation of drift in the right button |
| madDriftRight | mean absolute deviation of drift in the right button |
| cvDriftRight | coefficient of variation of drift in the right button |
| rangeDriftRight | range of drift in the right button |
| numberTap | number of taps |
| buttonNoneFreq | frequency where neither the left or right buttons were hit |
| corXY | correlation between the X and Y coordinates of the hits |
| Feature Name | Definition |
|---|---|
| Median F0 | Median of all possible pitch estimates |
| Mean Jitter | Mean of all possible jitter estimates |
| Median Jitter | Median of all possible jitter estimates |
| Mean Shimmer | Mean of all possible shimmer estimates |
| Median Shimmer | Median of all possible shimmer estimates |
| MFCC Band 1 | Mel-Frequency Cepstrum Band 1 |
| MFCC Band 2 | Mel-Frequency Cepstrum Band 2 |
| MFCC Band 3 | Mel-Frequency Cepstrum Band 3 |
| MFCC Band 4 | Mel-Frequency Cepstrum Band 4 |
| MFCC Jitter Band 1 Positive | Positive change in Mel-Frequency Cepstrum Band 1 over time |
| MFCC Jitter Band 2 Positive | Positive change in Mel-Frequency Cepstrum Band 2 over time |
| MFCC Jitter Band 3 Positive | Positive change in Mel-Frequency Cepstrum Band 3 over time |
| MFCC Jitter Band 4 Positive | Positive change in Mel-Frequency Cepstrum Band 4 over time |
| Feature Name | Definition |
|---|---|
| meanX | mean of the X acceleration series |
| sdX | standard deviation of the X acceleration series |
| modeX | mode of the X acceleration series |
| skewX | skewness of the X acceleration series |
| kurX | kurtosis of the X acceleration series |
| q1X | first quartile of the X acceleration series |
| medianX | median of the X acceleration series |
| q3X | third quartile of the X acceleration series |
| iqrX | interquartile range of the X acceleration series |
| rangeX | range of the X acceleration series |
| acfX | autocorrelation (lag = 1) of the X acceleration series |
| zcrX | zero-crossing rate of the X acceleration series |
| dfaX | scaling exponent of the detrended fluctuation analysis of the X acceleration series |
| cvX | coefficient of variation of the X acceleration series |
| tkeoX | teager-kaiser energy operator of the X acceleration series |
| F0X | frequency at which the maximum peak of the Lomb-Scargle periodogram occurred for the X acceleration series |
| P0X | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the X acceleration series |
| F0FX | frequency at which the maximum peak of the Lomb-Scargle periodogram occurred for the X acceleration series, with frequencies limited to (0.2,5) Hz |
| P0FX | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the X acceleration, with frequencies limited to (0.2,5) Hz series |
| meanY | mean of the Y acceleration series |
| sdY | standard deviation of the Y acceleration series |
| modeY | mode of the Y acceleration series |
| skewY | skewness of the Y acceleration series |
| kurY | kurtosis of the Y acceleration series |
| q1Y | first quartile of the Y acceleration series |
| medianY | median of the Y acceleration series |
| q3Y | third quartile of the Y acceleration series |
| iqrY | interquartile range of the Y acceleration series |
| rangeY | range of the Y acceleration series |
| acfY | autocorrelation (lag = 1) of the Y acceleration series |
| zcrY | zero-crossing rate of the Y acceleration series |
| dfaY | scaling exponent of the detrended fluctuation analysis of the Y acceleration series |
| cvY | coefficient of variation of the Y acceleration series |
| tkeoY | teager-kaiser energy operator of the Y acceleration series |
| F0Y | frequency at which the maximum peak of the Lomb-Scargle periodogram occurred for the Y acceleration series |
| P0Y | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the Y acceleration series |
| F0FY | frequency at which the maximum peak of the Lomb-Scargle periodogram occurred for the Y acceleration series, with frequencies limited to (0.2,5) Hz |
| P0FY | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the Y acceleration, with frequencies limited to (0.2,5) Hz series |
| meanZ | mean of the Z acceleration series |
| sdZ | standard deviation of the Z acceleration series |
| modeZ | mode of the Z acceleration series |
| skewZ | skewness of the Z acceleration series |
| kurZ | kurtosis of the Z acceleration series |
| q1Z | first quartile of the Z acceleration series |
| medianZ | median of the Z acceleration series |
| q3Z | third quartile of the Z acceleration series |
| iqrZ | interquartile range of the Z acceleration series |
| rangeZ | range of the Z acceleration series |
| acfZ | autocorrelation (lag = 1) of the Z acceleration series |
| zcrZ | zero-crossing rate of the Z acceleration series |
| dfaZ | scaling exponent of the detrended fluctuation analysis of the Z acceleration series |
| cvZ | coefficient of variation of the Z acceleration series |
| tkeoZ | teager-kaiser energy operator of the Z acceleration series |
| F0Z | frequency at which the maximum peak of the Lomb-Scargle periodogram occurred for the Z acceleration series |
| P0Z | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the Z acceleration series |
| F0FZ | frequency at which the maximum peak of the Lomb-Scargle periodogram occurred for the Z acceleration series, with frequencies limited to (0.2,5) Hz |
| P0FZ | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the Z acceleration, with frequencies limited to (0.2,5) Hz series |
| meanAA | mean of the average acceleration series |
| sdAA | standard deviation of the average acceleration series |
| modeAA | mode of the average acceleration series |
| skewAA | skewness of the average acceleration series |
| kurAA | kurtosis of the average acceleration series |
| q1AA | first quartile of the average acceleration series |
| medianAA | median of the average acceleration series |
| q3AA | third quartile of the average acceleration series |
| iqrAA | interquartile range of the average acceleration series |
| rangeAA | range of the average acceleration series |
| acfAA | autocorrelation (lag = 1) of the average acceleration series |
| zcrAA | zero-crossing rate of the average acceleration series |
| dfaAA | scaling exponent of the detrended fluctuation analysis of the average acceleration Series |
| cvAA | coefficient of variation of the average acceleration series |
| tkeoAA | teager-kaiser energy operator of the average acceleration series |
| F0AA | frequency at which the maximum peak of the Lomb-Scargle periodogram occured for the average acceleration series |
| P0AA | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the average acceleration series |
| F0FAA | frequency at which the maximum peak of the Lomb-Scargle periodogram occurred for the AA acceleration series, with frequencies limited to (0.2,5) Hz |
| P0FAA | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the AA acceleration, with frequencies limited to (0.2,5) Hz series |
| meanAJ | mean of the average jerk series |
| sdAJ | standard deviation of the average jerk series |
| modeAJ | mode of the average jerk series |
| skewAJ | skewness of the average jerk series |
| kurAJ | kurtosis of the average jerk series |
| q1AJ | first quartile of the average jerk series |
| medianAJ | median of the average jerk series |
| q3AJ | third quartile of the average jerk series |
| iqrAJ | interquartile range of the average jerk series |
| rangeAJ | range of the average jerk series |
| acfAJ | autocorrelation (lag = 1) of the average jerk series |
| zcrAJ | zero-crossing rate of the average jerk series |
| dfaAJ | scaling exponent of the detrended fluctuation analysis of the average jerk series |
| cvAJ | coefficient of variation of the average jerk series |
| tkeoAJ | teager-kaiser energy operator of the average jerk series |
| F0AJ | frequency at which the maximum peak of the Lomb-Scargle periodogram occurred for the average jerk series |
| P0AJ | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the average jerk series |
| F0FAJ | frequency at which the maximum peak of the Lomb-Scargle periodogram occurred for the AA acceleration series, with frequencies limited to (0.2,5) Hz |
| P0FAJ | maximum power in the inspected frequency interval of the Lomb-Scargle periodogram for the AJ acceleration, with frequencies limited to (0.2,5) Hz series |
| corXY | correlation between the X and Y acceleration |
| corXZ | correlation between the X and Z acceleration |
| corYZ | correlation between the Y and Z acceleration |
Where,
AA = sqrt(X^2 + Y^2 + Z^2)
AJ = sqrt((diff(X))^2 + (diff(Y))^2 + (diff(Z))^2)
| Feature Name | Definition |
|---|---|
| meanAA | mean of the average acceleration series |
| sdAA | standard deviation of the average acceleration series |
| modeAA | mode of the average acceleration series |
| skewAA | skewness of the average acceleration series |
| kurAA | kurtosis of the average acceleration series |
| q1AA | first quartile of the average acceleration series |
| medianAA | median of the average acceleration series |
| q3AA | third quartile of the average acceleration series |
| iqrAA | interquartile range of the average acceleration series |
| rangeAA | range of the average acceleration series |
| acfAA | autocorrelation (lag = 1) of the average acceleration series |
| zcrAA | zero-crossing rate of the average acceleration series |
| dfaAA | scaling exponent of the detrended fluctuation analysis of the average acceleration series |
| turningTime | turning time |
| Postpeak | posture peak |
| Postpower | posture power |
| Alpha | scaling exponent of the detrended fluctuation analysis of the force vector magnitute series |
| dVol | displacement volume (volume of the box around the displacement across the X, Y, and Z directions) |
| ddVol | delta displacement volume |