The tidy data set contains following variables
- Tidy data set contains 180 rows ( number of activity * number of subjects )
- activity - Describes the activity the person has performed. E.g. WALKING, WALKING_UPSTAIRS, WALKING_DOWNSTAIRS, SITTING, STANDING and LAYING
- subjectId - Id given to subject ( person under observation ) . It takes values from (1-30)
- Observation variables on the mean and standard deviation for each measurement. One column per observation having following labels
- tBodyAcc-mean()-X
- tBodyAcc-mean()-Y
- tBodyAcc-mean()-Z
- tBodyAcc-std()-X
- tBodyAcc-std()-Y
- tBodyAcc-std()-Z
- tGravityAcc-mean()-X
- tGravityAcc-mean()-Y
- tGravityAcc-mean()-Z
- tGravityAcc-std()-X
- tGravityAcc-std()-Y
- tGravityAcc-std()-Z
- tBodyAccJerk-mean()-X
- tBodyAccJerk-mean()-Y
- tBodyAccJerk-mean()-Z
- tBodyAccJerk-std()-X
- tBodyAccJerk-std()-Y
- tBodyAccJerk-std()-Z
- tBodyGyro-mean()-X
- tBodyGyro-mean()-Y
- tBodyGyro-mean()-Z
- tBodyGyro-std()-X
- tBodyGyro-std()-Y
- tBodyGyro-std()-Z
- tBodyGyroJerk-mean()-X
- tBodyGyroJerk-mean()-Y
- tBodyGyroJerk-mean()-Z
- tBodyGyroJerk-std()-X
- tBodyGyroJerk-std()-Y
- tBodyGyroJerk-std()-Z
- tBodyAccMag-mean()
- tBodyAccMag-std()
- tGravityAccMag-mean()
- tGravityAccMag-std()
- tBodyAccJerkMag-mean()
- tBodyAccJerkMag-std()
- tBodyGyroMag-mean()
- tBodyGyroMag-std()
- tBodyGyroJerkMag-mean()
- tBodyGyroJerkMag-std()
- fBodyAcc-mean()-X
- fBodyAcc-mean()-Y
- fBodyAcc-mean()-Z
- fBodyAcc-std()-X
- fBodyAcc-std()-Y
- fBodyAcc-std()-Z
- fBodyAcc-meanFreq()-X
- fBodyAcc-meanFreq()-Y
- fBodyAcc-meanFreq()-Z
- fBodyAccJerk-mean()-X
- fBodyAccJerk-mean()-Y
- fBodyAccJerk-mean()-Z
- fBodyAccJerk-std()-X
- fBodyAccJerk-std()-Y
- fBodyAccJerk-std()-Z
- fBodyAccJerk-meanFreq()-X
- fBodyAccJerk-meanFreq()-Y
- fBodyAccJerk-meanFreq()-Z
- fBodyGyro-mean()-X
- fBodyGyro-mean()-Y
- fBodyGyro-mean()-Z
- fBodyGyro-std()-X
- fBodyGyro-std()-Y
- fBodyGyro-std()-Z
- fBodyGyro-meanFreq()-X
- fBodyGyro-meanFreq()-Y
- fBodyGyro-meanFreq()-Z
- fBodyAccMag-mean()
- fBodyAccMag-std()
- fBodyAccMag-meanFreq()
- fBodyBodyAccJerkMag-mean()
- fBodyBodyAccJerkMag-std()
- fBodyBodyAccJerkMag-meanFreq()
- fBodyBodyGyroMag-mean()
- fBodyBodyGyroMag-std()
- fBodyBodyGyroMag-meanFreq()
- fBodyBodyGyroJerkMag-mean()
- fBodyBodyGyroJerkMag-std()
- fBodyBodyGyroJerkMag-meanFreq()