This project produces a tidy data set. The data set has the following 68 variables:
* subject
* activity
* AVG_tBodyAcc_MEAN_X
* AVG_tBodyAcc_MEAN_Y
* AVG_tBodyAcc_MEAN_Z
* AVG_tBodyAcc_STD_X
* AVG_tBodyAcc_STD_Y
* AVG_tBodyAcc_STD_Z
* AVG_tGravityAcc_MEAN_X
* AVG_tGravityAcc_MEAN_Y
* AVG_tGravityAcc_MEAN_Z
* AVG_tGravityAcc_STD_X
* AVG_tGravityAcc_STD_Y
* AVG_tGravityAcc_STD_Z
* AVG_tBodyAccJerk_MEAN_X
* AVG_tBodyAccJerk_MEAN_Y
* AVG_tBodyAccJerk_MEAN_Z
* AVG_tBodyAccJerk_STD_X
* AVG_tBodyAccJerk_STD_Y
* AVG_tBodyAccJerk_STD_Z
* AVG_tBodyGyro_MEAN_X
* AVG_tBodyGyro_MEAN_Y
* AVG_tBodyGyro_MEAN_Z
* AVG_tBodyGyro_STD_X
* AVG_tBodyGyro_STD_Y
* AVG_tBodyGyro_STD_Z
* AVG_tBodyGyroJerk_MEAN_X
* AVG_tBodyGyroJerk_MEAN_Y
* AVG_tBodyGyroJerk_MEAN_Z
* AVG_tBodyGyroJerk_STD_X
* AVG_tBodyGyroJerk_STD_Y
* AVG_tBodyGyroJerk_STD_Z
* AVG_tBodyAccMag_MEAN
* AVG_tBodyAccMag_STD
* AVG_tGravityAccMag_MEAN
* AVG_tGravityAccMag_STD
* AVG_tBodyAccJerkMag_MEAN
* AVG_tBodyAccJerkMag_STD
* AVG_tBodyGyroMag_MEAN
* AVG_tBodyGyroMag_STD
* AVG_tBodyGyroJerkMag_MEAN
* AVG_tBodyGyroJerkMag_STD
* AVG_fBodyAcc_MEAN_X
* AVG_fBodyAcc_MEAN_Y
* AVG_fBodyAcc_MEAN_Z
* AVG_fBodyAcc_STD_X
* AVG_fBodyAcc_STD_Y
* AVG_fBodyAcc_STD_Z
* AVG_fBodyAccJerk_MEAN_X
* AVG_fBodyAccJerk_MEAN_Y
* AVG_fBodyAccJerk_MEAN_Z
* AVG_fBodyAccJerk_STD_X
* AVG_fBodyAccJerk_STD_Y
* AVG_fBodyAccJerk_STD_Z
* AVG_fBodyGyro_MEAN_X
* AVG_fBodyGyro_MEAN_Y
* AVG_fBodyGyro_MEAN_Z
* AVG_fBodyGyro_STD_X
* AVG_fBodyGyro_STD_Y
* AVG_fBodyGyro_STD_Z
* AVG_fBodyAccMag_MEAN
* AVG_fBodyAccMag_STD
* AVG_fBodyBodyAccJerkMag_MEAN
* AVG_fBodyBodyAccJerkMag_STD
* AVG_fBodyBodyGyroMag_MEAN
* AVG_fBodyBodyGyroMag_STD
* AVG_fBodyBodyGyroJerkMag_MEAN
* AVG_fBodyBodyGyroJerkMag_STD
Variable subject contains the subjects that took part in this experiment.
It takes values from Person1 to Person30, since there were 30 participants.
Variable activity contains the particular activity that is measured for the corresponding Person.
It can take 6 different values:
* LAYING
* SITTING
* STANDING
* WALKING
* WALKING_DOWNSTAIRS
* WALKING_UPSTAIRS
As can be seen in subject and activity, each subject executed all 6 activities and for each of them an experiment value is produced. n experiment value is comprised of 66 different values, one for each of the following 66 variables.
Variables that contain the substring _MEAN contain the average of each MEAN variable for each activity and each subject.
Variables that contain the substring _STD contain the average of each STD variable for each activity and each subject.