The features selected for this database come from the accelerometer and gyroscope 3-axial raw signals tAcc-XYZ and tGyro-XYZ. These time domain signals (prefix 't' to denote time) were captured at a constant rate of 50 Hz. Then they were filtered using a median filter and a 3rd order low pass Butterworth filter with a corner frequency of 20 Hz to remove noise. Similarly, the acceleration signal was then separated into body and gravity acceleration signals (tBodyAcc-XYZ and tGravityAcc-XYZ) using another low pass Butterworth filter with a corner frequency of 0.3 Hz.
Subsequently, the body linear acceleration and angular velocity were derived in time to obtain Jerk signals (tBodyAccJerk-XYZ and tBodyGyroJerk-XYZ). Also the magnitude of these three-dimensional signals were calculated using the Euclidean norm (tBodyAccMag, tGravityAccMag, tBodyAccJerkMag, tBodyGyroMag, tBodyGyroJerkMag).
Finally a Fast Fourier Transform (FFT) was applied to some of these signals producing fBodyAcc-XYZ, fBodyAccJerk-XYZ, fBodyGyro-XYZ, fBodyAccJerkMag, fBodyGyroMag, fBodyGyroJerkMag. (Note the 'f' to indicate frequency domain signals).
These signals were used to estimate variables of the feature vector for each pattern:
'-XYZ' is used to denote 3-axial signals in the X, Y and Z directions.
tBodyAcc-XYZ tGravityAcc-XYZ tBodyAccJerk-XYZ tBodyGyro-XYZ tBodyGyroJerk-XYZ tBodyAccMag tGravityAccMag tBodyAccJerkMag tBodyGyroMag tBodyGyroJerkMag fBodyAcc-XYZ fBodyAccJerk-XYZ fBodyGyro-XYZ fBodyAccMag fBodyAccJerkMag fBodyGyroMag fBodyGyroJerkMag
The set of variables that were estimated from these signals are:
mean(): Mean value std(): Standard deviation mad(): Median absolute deviation max(): Largest value in array min(): Smallest value in array sma(): Signal magnitude area energy(): Energy measure. Sum of the squares divided by the number of values. iqr(): Interquartile range entropy(): Signal entropy arCoeff(): Autorregresion coefficients with Burg order equal to 4 correlation(): correlation coefficient between two signals maxInds(): index of the frequency component with largest magnitude meanFreq(): Weighted average of the frequency components to obtain a mean frequency skewness(): skewness of the frequency domain signal kurtosis(): kurtosis of the frequency domain signal bandsEnergy(): Energy of a frequency interval within the 64 bins of the FFT of each window. angle(): Angle between to vectors.
Additional vectors obtained by averaging the signals in a signal window sample. These are used on the angle() variable:
gravityMean tBodyAccMean tBodyAccJerkMean tBodyGyroMean tBodyGyroJerkMean
The complete list of variables of each feature vector is available in 'features.txt'
- tBodyAcc-mean()-X
- tBodyAcc-mean()-Y
- tBodyAcc-mean()-Z
- tBodyAcc-std()-X
- tBodyAcc-std()-Y
- tBodyAcc-std()-Z
- tBodyAcc-mad()-X
- tBodyAcc-mad()-Y
- tBodyAcc-mad()-Z
- tBodyAcc-max()-X
- tBodyAcc-max()-Y
- tBodyAcc-max()-Z
- tBodyAcc-min()-X
- tBodyAcc-min()-Y
- tBodyAcc-min()-Z
- tBodyAcc-sma()
- tBodyAcc-energy()-X
- tBodyAcc-energy()-Y
- tBodyAcc-energy()-Z
- tBodyAcc-iqr()-X
- tBodyAcc-iqr()-Y
- tBodyAcc-iqr()-Z
- tBodyAcc-entropy()-X
- tBodyAcc-entropy()-Y
- tBodyAcc-entropy()-Z
- tBodyAcc-arCoeff()-X,1
- tBodyAcc-arCoeff()-X,2
- tBodyAcc-arCoeff()-X,3
- tBodyAcc-arCoeff()-X,4
- tBodyAcc-arCoeff()-Y,1
- tBodyAcc-arCoeff()-Y,2
- tBodyAcc-arCoeff()-Y,3
- tBodyAcc-arCoeff()-Y,4
- tBodyAcc-arCoeff()-Z,1
- tBodyAcc-arCoeff()-Z,2
- tBodyAcc-arCoeff()-Z,3
- tBodyAcc-arCoeff()-Z,4
- tBodyAcc-correlation()-X,Y
- tBodyAcc-correlation()-X,Z
- tBodyAcc-correlation()-Y,Z
- tGravityAcc-mean()-X
- tGravityAcc-mean()-Y
- tGravityAcc-mean()-Z
- tGravityAcc-std()-X
- tGravityAcc-std()-Y
- tGravityAcc-std()-Z
- tGravityAcc-mad()-X
- tGravityAcc-mad()-Y
- tGravityAcc-mad()-Z
- tGravityAcc-max()-X
- tGravityAcc-max()-Y
- tGravityAcc-max()-Z
- tGravityAcc-min()-X
- tGravityAcc-min()-Y
- tGravityAcc-min()-Z
- tGravityAcc-sma()
- tGravityAcc-energy()-X
- tGravityAcc-energy()-Y
- tGravityAcc-energy()-Z
- tGravityAcc-iqr()-X
- tGravityAcc-iqr()-Y
- tGravityAcc-iqr()-Z
- tGravityAcc-entropy()-X
- tGravityAcc-entropy()-Y
- tGravityAcc-entropy()-Z
- tGravityAcc-arCoeff()-X,1
- tGravityAcc-arCoeff()-X,2
- tGravityAcc-arCoeff()-X,3
- tGravityAcc-arCoeff()-X,4
- tGravityAcc-arCoeff()-Y,1
- tGravityAcc-arCoeff()-Y,2
- tGravityAcc-arCoeff()-Y,3
- tGravityAcc-arCoeff()-Y,4
- tGravityAcc-arCoeff()-Z,1
- tGravityAcc-arCoeff()-Z,2
- tGravityAcc-arCoeff()-Z,3
- tGravityAcc-arCoeff()-Z,4
- tGravityAcc-correlation()-X,Y
- tGravityAcc-correlation()-X,Z
- tGravityAcc-correlation()-Y,Z
- tBodyAccJerk-mean()-X
- tBodyAccJerk-mean()-Y
- tBodyAccJerk-mean()-Z
- tBodyAccJerk-std()-X
- tBodyAccJerk-std()-Y
- tBodyAccJerk-std()-Z
- tBodyAccJerk-mad()-X
- tBodyAccJerk-mad()-Y
- tBodyAccJerk-mad()-Z
- tBodyAccJerk-max()-X
- tBodyAccJerk-max()-Y
- tBodyAccJerk-max()-Z
- tBodyAccJerk-min()-X
- tBodyAccJerk-min()-Y
- tBodyAccJerk-min()-Z
- tBodyAccJerk-sma()
- tBodyAccJerk-energy()-X
- tBodyAccJerk-energy()-Y
- tBodyAccJerk-energy()-Z
- tBodyAccJerk-iqr()-X
- tBodyAccJerk-iqr()-Y
- tBodyAccJerk-iqr()-Z
- tBodyAccJerk-entropy()-X
- tBodyAccJerk-entropy()-Y
- tBodyAccJerk-entropy()-Z
- tBodyAccJerk-arCoeff()-X,1
- tBodyAccJerk-arCoeff()-X,2
- tBodyAccJerk-arCoeff()-X,3
- tBodyAccJerk-arCoeff()-X,4
- tBodyAccJerk-arCoeff()-Y,1
- tBodyAccJerk-arCoeff()-Y,2
- tBodyAccJerk-arCoeff()-Y,3
- tBodyAccJerk-arCoeff()-Y,4
- tBodyAccJerk-arCoeff()-Z,1
- tBodyAccJerk-arCoeff()-Z,2
- tBodyAccJerk-arCoeff()-Z,3
- tBodyAccJerk-arCoeff()-Z,4
- tBodyAccJerk-correlation()-X,Y
- tBodyAccJerk-correlation()-X,Z
- tBodyAccJerk-correlation()-Y,Z
- tBodyGyro-mean()-X
- tBodyGyro-mean()-Y
- tBodyGyro-mean()-Z
- tBodyGyro-std()-X
- tBodyGyro-std()-Y
- tBodyGyro-std()-Z
- tBodyGyro-mad()-X
- tBodyGyro-mad()-Y
- tBodyGyro-mad()-Z
- tBodyGyro-max()-X
- tBodyGyro-max()-Y
- tBodyGyro-max()-Z
- tBodyGyro-min()-X
- tBodyGyro-min()-Y
- tBodyGyro-min()-Z
- tBodyGyro-sma()
- tBodyGyro-energy()-X
- tBodyGyro-energy()-Y
- tBodyGyro-energy()-Z
- tBodyGyro-iqr()-X
- tBodyGyro-iqr()-Y
- tBodyGyro-iqr()-Z
- tBodyGyro-entropy()-X
- tBodyGyro-entropy()-Y
- tBodyGyro-entropy()-Z
- tBodyGyro-arCoeff()-X,1
- tBodyGyro-arCoeff()-X,2
- tBodyGyro-arCoeff()-X,3
- tBodyGyro-arCoeff()-X,4
- tBodyGyro-arCoeff()-Y,1
- tBodyGyro-arCoeff()-Y,2
- tBodyGyro-arCoeff()-Y,3
- tBodyGyro-arCoeff()-Y,4
- tBodyGyro-arCoeff()-Z,1
- tBodyGyro-arCoeff()-Z,2
- tBodyGyro-arCoeff()-Z,3
- tBodyGyro-arCoeff()-Z,4
- tBodyGyro-correlation()-X,Y
- tBodyGyro-correlation()-X,Z
- tBodyGyro-correlation()-Y,Z
- tBodyGyroJerk-mean()-X
- tBodyGyroJerk-mean()-Y
- tBodyGyroJerk-mean()-Z
- tBodyGyroJerk-std()-X
- tBodyGyroJerk-std()-Y
- tBodyGyroJerk-std()-Z
- tBodyGyroJerk-mad()-X
- tBodyGyroJerk-mad()-Y
- tBodyGyroJerk-mad()-Z
- tBodyGyroJerk-max()-X
- tBodyGyroJerk-max()-Y
- tBodyGyroJerk-max()-Z
- tBodyGyroJerk-min()-X
- tBodyGyroJerk-min()-Y
- tBodyGyroJerk-min()-Z
- tBodyGyroJerk-sma()
- tBodyGyroJerk-energy()-X
- tBodyGyroJerk-energy()-Y
- tBodyGyroJerk-energy()-Z
- tBodyGyroJerk-iqr()-X
- tBodyGyroJerk-iqr()-Y
- tBodyGyroJerk-iqr()-Z
- tBodyGyroJerk-entropy()-X
- tBodyGyroJerk-entropy()-Y
- tBodyGyroJerk-entropy()-Z
- tBodyGyroJerk-arCoeff()-X,1
- tBodyGyroJerk-arCoeff()-X,2
- tBodyGyroJerk-arCoeff()-X,3
- tBodyGyroJerk-arCoeff()-X,4
- tBodyGyroJerk-arCoeff()-Y,1
- tBodyGyroJerk-arCoeff()-Y,2
- tBodyGyroJerk-arCoeff()-Y,3
- tBodyGyroJerk-arCoeff()-Y,4
- tBodyGyroJerk-arCoeff()-Z,1
- tBodyGyroJerk-arCoeff()-Z,2
- tBodyGyroJerk-arCoeff()-Z,3
- tBodyGyroJerk-arCoeff()-Z,4
- tBodyGyroJerk-correlation()-X,Y
- tBodyGyroJerk-correlation()-X,Z
- tBodyGyroJerk-correlation()-Y,Z
- tBodyAccMag-mean()
- tBodyAccMag-std()
- tBodyAccMag-mad()
- tBodyAccMag-max()
- tBodyAccMag-min()
- tBodyAccMag-sma()
- tBodyAccMag-energy()
- tBodyAccMag-iqr()
- tBodyAccMag-entropy()
- tBodyAccMag-arCoeff()1
- tBodyAccMag-arCoeff()2
- tBodyAccMag-arCoeff()3
- tBodyAccMag-arCoeff()4
- tGravityAccMag-mean()
- tGravityAccMag-std()
- tGravityAccMag-mad()
- tGravityAccMag-max()
- tGravityAccMag-min()
- tGravityAccMag-sma()
- tGravityAccMag-energy()
- tGravityAccMag-iqr()
- tGravityAccMag-entropy()
- tGravityAccMag-arCoeff()1
- tGravityAccMag-arCoeff()2
- tGravityAccMag-arCoeff()3
- tGravityAccMag-arCoeff()4
- tBodyAccJerkMag-mean()
- tBodyAccJerkMag-std()
- tBodyAccJerkMag-mad()
- tBodyAccJerkMag-max()
- tBodyAccJerkMag-min()
- tBodyAccJerkMag-sma()
- tBodyAccJerkMag-energy()
- tBodyAccJerkMag-iqr()
- tBodyAccJerkMag-entropy()
- tBodyAccJerkMag-arCoeff()1
- tBodyAccJerkMag-arCoeff()2
- tBodyAccJerkMag-arCoeff()3
- tBodyAccJerkMag-arCoeff()4
- tBodyGyroMag-mean()
- tBodyGyroMag-std()
- tBodyGyroMag-mad()
- tBodyGyroMag-max()
- tBodyGyroMag-min()
- tBodyGyroMag-sma()
- tBodyGyroMag-energy()
- tBodyGyroMag-iqr()
- tBodyGyroMag-entropy()
- tBodyGyroMag-arCoeff()1
- tBodyGyroMag-arCoeff()2
- tBodyGyroMag-arCoeff()3
- tBodyGyroMag-arCoeff()4
- tBodyGyroJerkMag-mean()
- tBodyGyroJerkMag-std()
- tBodyGyroJerkMag-mad()
- tBodyGyroJerkMag-max()
- tBodyGyroJerkMag-min()
- tBodyGyroJerkMag-sma()
- tBodyGyroJerkMag-energy()
- tBodyGyroJerkMag-iqr()
- tBodyGyroJerkMag-entropy()
- tBodyGyroJerkMag-arCoeff()1
- tBodyGyroJerkMag-arCoeff()2
- tBodyGyroJerkMag-arCoeff()3
- tBodyGyroJerkMag-arCoeff()4
- fBodyAcc-mean()-X
- fBodyAcc-mean()-Y
- fBodyAcc-mean()-Z
- fBodyAcc-std()-X
- fBodyAcc-std()-Y
- fBodyAcc-std()-Z
- fBodyAcc-mad()-X
- fBodyAcc-mad()-Y
- fBodyAcc-mad()-Z
- fBodyAcc-max()-X
- fBodyAcc-max()-Y
- fBodyAcc-max()-Z
- fBodyAcc-min()-X
- fBodyAcc-min()-Y
- fBodyAcc-min()-Z
- fBodyAcc-sma()
- fBodyAcc-energy()-X
- fBodyAcc-energy()-Y
- fBodyAcc-energy()-Z
- fBodyAcc-iqr()-X
- fBodyAcc-iqr()-Y
- fBodyAcc-iqr()-Z
- fBodyAcc-entropy()-X
- fBodyAcc-entropy()-Y
- fBodyAcc-entropy()-Z
- fBodyAcc-maxInds-X
- fBodyAcc-maxInds-Y
- fBodyAcc-maxInds-Z
- fBodyAcc-meanFreq()-X
- fBodyAcc-meanFreq()-Y
- fBodyAcc-meanFreq()-Z
- fBodyAcc-skewness()-X
- fBodyAcc-kurtosis()-X
- fBodyAcc-skewness()-Y
- fBodyAcc-kurtosis()-Y
- fBodyAcc-skewness()-Z
- fBodyAcc-kurtosis()-Z
- fBodyAcc-bandsEnergy()-1,8
- fBodyAcc-bandsEnergy()-9,16
- fBodyAcc-bandsEnergy()-17,24
- fBodyAcc-bandsEnergy()-25,32
- fBodyAcc-bandsEnergy()-33,40
- fBodyAcc-bandsEnergy()-41,48
- fBodyAcc-bandsEnergy()-49,56
- fBodyAcc-bandsEnergy()-57,64
- fBodyAcc-bandsEnergy()-1,16
- fBodyAcc-bandsEnergy()-17,32
- fBodyAcc-bandsEnergy()-33,48
- fBodyAcc-bandsEnergy()-49,64
- fBodyAcc-bandsEnergy()-1,24
- fBodyAcc-bandsEnergy()-25,48
- fBodyAcc-bandsEnergy()-1,8
- fBodyAcc-bandsEnergy()-9,16
- fBodyAcc-bandsEnergy()-17,24
- fBodyAcc-bandsEnergy()-25,32
- fBodyAcc-bandsEnergy()-33,40
- fBodyAcc-bandsEnergy()-41,48
- fBodyAcc-bandsEnergy()-49,56
- fBodyAcc-bandsEnergy()-57,64
- fBodyAcc-bandsEnergy()-1,16
- fBodyAcc-bandsEnergy()-17,32
- fBodyAcc-bandsEnergy()-33,48
- fBodyAcc-bandsEnergy()-49,64
- fBodyAcc-bandsEnergy()-1,24
- fBodyAcc-bandsEnergy()-25,48
- fBodyAcc-bandsEnergy()-1,8
- fBodyAcc-bandsEnergy()-9,16
- fBodyAcc-bandsEnergy()-17,24
- fBodyAcc-bandsEnergy()-25,32
- fBodyAcc-bandsEnergy()-33,40
- fBodyAcc-bandsEnergy()-41,48
- fBodyAcc-bandsEnergy()-49,56
- fBodyAcc-bandsEnergy()-57,64
- fBodyAcc-bandsEnergy()-1,16
- fBodyAcc-bandsEnergy()-17,32
- fBodyAcc-bandsEnergy()-33,48
- fBodyAcc-bandsEnergy()-49,64
- fBodyAcc-bandsEnergy()-1,24
- fBodyAcc-bandsEnergy()-25,48
- fBodyAccJerk-mean()-X
- fBodyAccJerk-mean()-Y
- fBodyAccJerk-mean()-Z
- fBodyAccJerk-std()-X
- fBodyAccJerk-std()-Y
- fBodyAccJerk-std()-Z
- fBodyAccJerk-mad()-X
- fBodyAccJerk-mad()-Y
- fBodyAccJerk-mad()-Z
- fBodyAccJerk-max()-X
- fBodyAccJerk-max()-Y
- fBodyAccJerk-max()-Z
- fBodyAccJerk-min()-X
- fBodyAccJerk-min()-Y
- fBodyAccJerk-min()-Z
- fBodyAccJerk-sma()
- fBodyAccJerk-energy()-X
- fBodyAccJerk-energy()-Y
- fBodyAccJerk-energy()-Z
- fBodyAccJerk-iqr()-X
- fBodyAccJerk-iqr()-Y
- fBodyAccJerk-iqr()-Z
- fBodyAccJerk-entropy()-X
- fBodyAccJerk-entropy()-Y
- fBodyAccJerk-entropy()-Z
- fBodyAccJerk-maxInds-X
- fBodyAccJerk-maxInds-Y
- fBodyAccJerk-maxInds-Z
- fBodyAccJerk-meanFreq()-X
- fBodyAccJerk-meanFreq()-Y
- fBodyAccJerk-meanFreq()-Z
- fBodyAccJerk-skewness()-X
- fBodyAccJerk-kurtosis()-X
- fBodyAccJerk-skewness()-Y
- fBodyAccJerk-kurtosis()-Y
- fBodyAccJerk-skewness()-Z
- fBodyAccJerk-kurtosis()-Z
- fBodyAccJerk-bandsEnergy()-1,8
- fBodyAccJerk-bandsEnergy()-9,16
- fBodyAccJerk-bandsEnergy()-17,24
- fBodyAccJerk-bandsEnergy()-25,32
- fBodyAccJerk-bandsEnergy()-33,40
- fBodyAccJerk-bandsEnergy()-41,48
- fBodyAccJerk-bandsEnergy()-49,56
- fBodyAccJerk-bandsEnergy()-57,64
- fBodyAccJerk-bandsEnergy()-1,16
- fBodyAccJerk-bandsEnergy()-17,32
- fBodyAccJerk-bandsEnergy()-33,48
- fBodyAccJerk-bandsEnergy()-49,64
- fBodyAccJerk-bandsEnergy()-1,24
- fBodyAccJerk-bandsEnergy()-25,48
- fBodyAccJerk-bandsEnergy()-1,8
- fBodyAccJerk-bandsEnergy()-9,16
- fBodyAccJerk-bandsEnergy()-17,24
- fBodyAccJerk-bandsEnergy()-25,32
- fBodyAccJerk-bandsEnergy()-33,40
- fBodyAccJerk-bandsEnergy()-41,48
- fBodyAccJerk-bandsEnergy()-49,56
- fBodyAccJerk-bandsEnergy()-57,64
- fBodyAccJerk-bandsEnergy()-1,16
- fBodyAccJerk-bandsEnergy()-17,32
- fBodyAccJerk-bandsEnergy()-33,48
- fBodyAccJerk-bandsEnergy()-49,64
- fBodyAccJerk-bandsEnergy()-1,24
- fBodyAccJerk-bandsEnergy()-25,48
- fBodyAccJerk-bandsEnergy()-1,8
- fBodyAccJerk-bandsEnergy()-9,16
- fBodyAccJerk-bandsEnergy()-17,24
- fBodyAccJerk-bandsEnergy()-25,32
- fBodyAccJerk-bandsEnergy()-33,40
- fBodyAccJerk-bandsEnergy()-41,48
- fBodyAccJerk-bandsEnergy()-49,56
- fBodyAccJerk-bandsEnergy()-57,64
- fBodyAccJerk-bandsEnergy()-1,16
- fBodyAccJerk-bandsEnergy()-17,32
- fBodyAccJerk-bandsEnergy()-33,48
- fBodyAccJerk-bandsEnergy()-49,64
- fBodyAccJerk-bandsEnergy()-1,24
- fBodyAccJerk-bandsEnergy()-25,48
- fBodyGyro-mean()-X
- fBodyGyro-mean()-Y
- fBodyGyro-mean()-Z
- fBodyGyro-std()-X
- fBodyGyro-std()-Y
- fBodyGyro-std()-Z
- fBodyGyro-mad()-X
- fBodyGyro-mad()-Y
- fBodyGyro-mad()-Z
- fBodyGyro-max()-X
- fBodyGyro-max()-Y
- fBodyGyro-max()-Z
- fBodyGyro-min()-X
- fBodyGyro-min()-Y
- fBodyGyro-min()-Z
- fBodyGyro-sma()
- fBodyGyro-energy()-X
- fBodyGyro-energy()-Y
- fBodyGyro-energy()-Z
- fBodyGyro-iqr()-X
- fBodyGyro-iqr()-Y
- fBodyGyro-iqr()-Z
- fBodyGyro-entropy()-X
- fBodyGyro-entropy()-Y
- fBodyGyro-entropy()-Z
- fBodyGyro-maxInds-X
- fBodyGyro-maxInds-Y
- fBodyGyro-maxInds-Z
- fBodyGyro-meanFreq()-X
- fBodyGyro-meanFreq()-Y
- fBodyGyro-meanFreq()-Z
- fBodyGyro-skewness()-X
- fBodyGyro-kurtosis()-X
- fBodyGyro-skewness()-Y
- fBodyGyro-kurtosis()-Y
- fBodyGyro-skewness()-Z
- fBodyGyro-kurtosis()-Z
- fBodyGyro-bandsEnergy()-1,8
- fBodyGyro-bandsEnergy()-9,16
- fBodyGyro-bandsEnergy()-17,24
- fBodyGyro-bandsEnergy()-25,32
- fBodyGyro-bandsEnergy()-33,40
- fBodyGyro-bandsEnergy()-41,48
- fBodyGyro-bandsEnergy()-49,56
- fBodyGyro-bandsEnergy()-57,64
- fBodyGyro-bandsEnergy()-1,16
- fBodyGyro-bandsEnergy()-17,32
- fBodyGyro-bandsEnergy()-33,48
- fBodyGyro-bandsEnergy()-49,64
- fBodyGyro-bandsEnergy()-1,24
- fBodyGyro-bandsEnergy()-25,48
- fBodyGyro-bandsEnergy()-1,8
- fBodyGyro-bandsEnergy()-9,16
- fBodyGyro-bandsEnergy()-17,24
- fBodyGyro-bandsEnergy()-25,32
- fBodyGyro-bandsEnergy()-33,40
- fBodyGyro-bandsEnergy()-41,48
- fBodyGyro-bandsEnergy()-49,56
- fBodyGyro-bandsEnergy()-57,64
- fBodyGyro-bandsEnergy()-1,16
- fBodyGyro-bandsEnergy()-17,32
- fBodyGyro-bandsEnergy()-33,48
- fBodyGyro-bandsEnergy()-49,64
- fBodyGyro-bandsEnergy()-1,24
- fBodyGyro-bandsEnergy()-25,48
- fBodyGyro-bandsEnergy()-1,8
- fBodyGyro-bandsEnergy()-9,16
- fBodyGyro-bandsEnergy()-17,24
- fBodyGyro-bandsEnergy()-25,32
- fBodyGyro-bandsEnergy()-33,40
- fBodyGyro-bandsEnergy()-41,48
- fBodyGyro-bandsEnergy()-49,56
- fBodyGyro-bandsEnergy()-57,64
- fBodyGyro-bandsEnergy()-1,16
- fBodyGyro-bandsEnergy()-17,32
- fBodyGyro-bandsEnergy()-33,48
- fBodyGyro-bandsEnergy()-49,64
- fBodyGyro-bandsEnergy()-1,24
- fBodyGyro-bandsEnergy()-25,48
- fBodyAccMag-mean()
- fBodyAccMag-std()
- fBodyAccMag-mad()
- fBodyAccMag-max()
- fBodyAccMag-min()
- fBodyAccMag-sma()
- fBodyAccMag-energy()
- fBodyAccMag-iqr()
- fBodyAccMag-entropy()
- fBodyAccMag-maxInds
- fBodyAccMag-meanFreq()
- fBodyAccMag-skewness()
- fBodyAccMag-kurtosis()
- fBodyBodyAccJerkMag-mean()
- fBodyBodyAccJerkMag-std()
- fBodyBodyAccJerkMag-mad()
- fBodyBodyAccJerkMag-max()
- fBodyBodyAccJerkMag-min()
- fBodyBodyAccJerkMag-sma()
- fBodyBodyAccJerkMag-energy()
- fBodyBodyAccJerkMag-iqr()
- fBodyBodyAccJerkMag-entropy()
- fBodyBodyAccJerkMag-maxInds
- fBodyBodyAccJerkMag-meanFreq()
- fBodyBodyAccJerkMag-skewness()
- fBodyBodyAccJerkMag-kurtosis()
- fBodyBodyGyroMag-mean()
- fBodyBodyGyroMag-std()
- fBodyBodyGyroMag-mad()
- fBodyBodyGyroMag-max()
- fBodyBodyGyroMag-min()
- fBodyBodyGyroMag-sma()
- fBodyBodyGyroMag-energy()
- fBodyBodyGyroMag-iqr()
- fBodyBodyGyroMag-entropy()
- fBodyBodyGyroMag-maxInds
- fBodyBodyGyroMag-meanFreq()
- fBodyBodyGyroMag-skewness()
- fBodyBodyGyroMag-kurtosis()
- fBodyBodyGyroJerkMag-mean()
- fBodyBodyGyroJerkMag-std()
- fBodyBodyGyroJerkMag-mad()
- fBodyBodyGyroJerkMag-max()
- fBodyBodyGyroJerkMag-min()
- fBodyBodyGyroJerkMag-sma()
- fBodyBodyGyroJerkMag-energy()
- fBodyBodyGyroJerkMag-iqr()
- fBodyBodyGyroJerkMag-entropy()
- fBodyBodyGyroJerkMag-maxInds
- fBodyBodyGyroJerkMag-meanFreq()
- fBodyBodyGyroJerkMag-skewness()
- fBodyBodyGyroJerkMag-kurtosis()
- angle(tBodyAccMean,gravity)
- angle(tBodyAccJerkMean),gravityMean)
- angle(tBodyGyroMean,gravityMean)
- angle(tBodyGyroJerkMean,gravityMean)
- angle(X,gravityMean)
- angle(Y,gravityMean)
- angle(Z,gravityMean)
| Sl. No. | Column names | Data Type | Description |
|---|---|---|---|
| 1 | Activity | factor | Activities each subject did |
| 2 | Subject | Integer | Range 1-30. Identifier for each subject |
| 3 | mean(tBodyAccMeanXaxis) | numeric | Mean of tBodyAccMeanXaxis measure grouped by Activity and subject |
| 4 | mean(tBodyAccMeanYaxis) | numeric | Mean of tBodyAccMeanYaxis measure grouped by Activity and subject |
| 5 | mean(tBodyAccMeanZaxis) | numeric | Mean of tBodyAccMeanZaxis measure grouped by Activity and subject |
| 6 | mean(tBodyAccSDXaxis) | numeric | Mean of tBodyAccSDXaxis measure grouped by Activity and subject |
| 7 | mean(tBodyAccSDYaxis) | numeric | Mean of tBodyAccSDYaxis measure grouped by Activity and subject |
| 8 | mean(tBodyAccSDZaxis) | numeric | Mean of tBodyAccSDZaxis measure grouped by Activity and subject |
| 9 | mean(tGravityAccMeanXaxis) | numeric | Mean of tGravityAccMeanXaxis measure grouped by Activity and subject |
| 10 | mean(tGravityAccMeanYaxis) | numeric | Mean of tGravityAccMeanYaxis measure grouped by Activity and subject |
| 11 | mean(tGravityAccMeanZaxis) | numeric | Mean of tGravityAccMeanZaxis measure grouped by Activity and subject |
| 12 | mean(tGravityAccSDXaxis) | numeric | Mean of tGravityAccSDXaxis measure grouped by Activity and subject |
| 13 | mean(tGravityAccSDYaxis) | numeric | Mean of tGravityAccSDYaxis measure grouped by Activity and subject |
| 14 | mean(tGravityAccSDZaxis) | numeric | Mean of tGravityAccSDZaxis measure grouped by Activity and subject |
| 15 | mean(tBodyAccJerkMeanXaxis) | numeric | Mean of tBodyAccJerkMeanXaxis measure grouped by Activity and subject |
| 16 | mean(tBodyAccJerkMeanYaxis) | numeric | Mean of tBodyAccJerkMeanYaxis measure grouped by Activity and subject |
| 17 | mean(tBodyAccJerkMeanZaxis) | numeric | Mean of tBodyAccJerkMeanZaxis measure grouped by Activity and subject |
| 18 | mean(tBodyAccJerkSDXaxis) | numeric | Mean of tBodyAccJerkSDXaxis measure grouped by Activity and subject |
| 19 | mean(tBodyAccJerkSDYaxis) | numeric | Mean of tBodyAccJerkSDYaxis measure grouped by Activity and subject |
| 20 | mean(tBodyAccJerkSDZaxis) | numeric | Mean of tBodyAccJerkSDZaxis measure grouped by Activity and subject |
| 21 | mean(tBodyGyroMeanXaxis) | numeric | Mean of tBodyGyroMeanXaxis measure grouped by Activity and subject |
| 22 | mean(tBodyGyroMeanYaxis) | numeric | Mean of tBodyGyroMeanYaxis measure grouped by Activity and subject |
| 23 | mean(tBodyGyroMeanZaxis) | numeric | Mean of tBodyGyroMeanZaxis measure grouped by Activity and subject |
| 24 | mean(tBodyGyroSDXaxis) | numeric | Mean of tBodyGyroSDXaxis measure grouped by Activity and subject |
| 25 | mean(tBodyGyroSDYaxis) | numeric | Mean of tBodyGyroSDYaxis measure grouped by Activity and subject |
| 26 | mean(tBodyGyroSDZaxis) | numeric | Mean of tBodyGyroSDZaxis measure grouped by Activity and subject |
| 27 | mean(tBodyGyroJerkMeanXaxis) | numeric | Mean of tBodyGyroJerkMeanXaxis measure grouped by Activity and subject |
| 28 | mean(tBodyGyroJerkMeanYaxis) | numeric | Mean of tBodyGyroJerkMeanYaxis measure grouped by Activity and subject |
| 29 | mean(tBodyGyroJerkMeanZaxis) | numeric | Mean of tBodyGyroJerkMeanZaxis measure grouped by Activity and subject |
| 30 | mean(tBodyGyroJerkSDXaxis) | numeric | Mean of tBodyGyroJerkSDXaxis measure grouped by Activity and subject |
| 31 | mean(tBodyGyroJerkSDYaxis) | numeric | Mean of tBodyGyroJerkSDYaxis measure grouped by Activity and subject |
| 32 | mean(tBodyGyroJerkSDZaxis) | numeric | Mean of tBodyGyroJerkSDZaxis measure grouped by Activity and subject |
| 33 | mean(tBodyAccMagMean) | numeric | Mean of tBodyAccMagMean measure grouped by Activity and subject |
| 34 | mean(tBodyAccMagSD) | numeric | Mean of tBodyAccMagSD measure grouped by Activity and subject |
| 35 | mean(tGravityAccMagMean) | numeric | Mean of tGravityAccMagMean measure grouped by Activity and subject |
| 36 | mean(tGravityAccMagSD) | numeric | Mean of tGravityAccMagSD measure grouped by Activity and subject |
| 37 | mean(tBodyAccJerkMagMean) | numeric | Mean of tBodyAccJerkMagMean measure grouped by Activity and subject |
| 38 | mean(tBodyAccJerkMagSD) | numeric | Mean of tBodyAccJerkMagSD measure grouped by Activity and subject |
| 39 | mean(tBodyGyroMagMean) | numeric | Mean of tBodyGyroMagMean measure grouped by Activity and subject |
| 40 | mean(tBodyGyroMagSD) | numeric | Mean of tBodyGyroMagSD measure grouped by Activity and subject |
| 41 | mean(tBodyGyroJerkMagMean) | numeric | Mean of tBodyGyroJerkMagMean measure grouped by Activity and subject |
| 42 | mean(tBodyGyroJerkMagSD) | numeric | Mean of tBodyGyroJerkMagSD measure grouped by Activity and subject |
| 43 | mean(fBodyAccMeanXaxis) | numeric | Mean of fBodyAccMeanXaxis measure grouped by Activity and subject |
| 44 | mean(fBodyAccMeanYaxis) | numeric | Mean of fBodyAccMeanYaxis measure grouped by Activity and subject |
| 45 | mean(fBodyAccMeanZaxis) | numeric | Mean of fBodyAccMeanZaxis measure grouped by Activity and subject |
| 46 | mean(fBodyAccSDXaxis) | numeric | Mean of fBodyAccSDXaxis measure grouped by Activity and subject |
| 47 | mean(fBodyAccSDYaxis) | numeric | Mean of fBodyAccSDYaxis measure grouped by Activity and subject |
| 48 | mean(fBodyAccSDZaxis) | numeric | Mean of fBodyAccSDZaxis measure grouped by Activity and subject |
| 49 | mean(fBodyAccJerkMeanXaxis) | numeric | Mean of fBodyAccJerkMeanXaxis measure grouped by Activity and subject |
| 50 | mean(fBodyAccJerkMeanYaxis) | numeric | Mean of fBodyAccJerkMeanYaxis measure grouped by Activity and subject |
| 51 | mean(fBodyAccJerkMeanZaxis) | numeric | Mean of fBodyAccJerkMeanZaxis measure grouped by Activity and subject |
| 52 | mean(fBodyAccJerkSDXaxis) | numeric | Mean of fBodyAccJerkSDXaxis measure grouped by Activity and subject |
| 53 | mean(fBodyAccJerkSDYaxis) | numeric | Mean of fBodyAccJerkSDYaxis measure grouped by Activity and subject |
| 54 | mean(fBodyAccJerkSDZaxis) | numeric | Mean of fBodyAccJerkSDZaxis measure grouped by Activity and subject |
| 55 | mean(fBodyGyroMeanXaxis) | numeric | Mean of fBodyGyroMeanXaxis measure grouped by Activity and subject |
| 56 | mean(fBodyGyroMeanYaxis) | numeric | Mean of fBodyGyroMeanYaxis measure grouped by Activity and subject |
| 57 | mean(fBodyGyroMeanZaxis) | numeric | Mean of fBodyGyroMeanZaxis measure grouped by Activity and subject |
| 58 | mean(fBodyGyroSDXaxis) | numeric | Mean of fBodyGyroSDXaxis measure grouped by Activity and subject |
| 59 | mean(fBodyGyroSDYaxis) | numeric | Mean of fBodyGyroSDYaxis measure grouped by Activity and subject |
| 60 | mean(fBodyGyroSDZaxis) | numeric | Mean of fBodyGyroSDZaxis measure grouped by Activity and subject |
| 61 | mean(fBodyAccMagMean) | numeric | Mean of fBodyAccMagMean measure grouped by Activity and subject |
| 62 | mean(fBodyAccMagSD) | numeric | Mean of fBodyAccMagSD measure grouped by Activity and subject |
| 63 | mean(fBodyBodyAccJerkMagMean) | numeric | Mean of fBodyBodyAccJerkMagMean measure grouped by Activity and subject |
| 64 | mean(fBodyBodyAccJerkMagSD) | numeric | Mean of fBodyBodyAccJerkMagSD measure grouped by Activity and subject |
| 65 | mean(fBodyBodyGyroMagMean) | numeric | Mean of fBodyBodyGyroMagMean measure grouped by Activity and subject |
| 66 | mean(fBodyBodyGyroMagSD) | numeric | Mean of fBodyBodyGyroMagSD measure grouped by Activity and subject |
| 67 | mean(fBodyBodyGyroJerkMagMean) | numeric | Mean of fBodyBodyGyroJerkMagMean measure grouped by Activity and subject |
| 68 | mean(fBodyBodyGyroJerkMagSD) | numeric | Mean of fBodyBodyGyroJerkMagSD measure grouped by Activity and subject |
| Level | Labels |
|---|---|
| 1 | WALKING |
| 12 | WALKING_UPSTAIRS |
| 3 | WALKING_DOWNSTAIRS |
| 4 | SITTING |
| 5 | STANDING |
| 6 | LAYING |