For information on the original features of this dataset please set feature_info.txt
##Variables Created train - created by merging: /train/subject_train.txt /train/X_train.txt /train/Y_train.txt
test - created by merging: /test/subject_test.txt /test/X_test.txt /test/Y_test.txt
trainAndTest - created by merging train and test
justMeansAndSTD - Created by excluding all variables without the words "mean" or "std" in them from trainAndTest.
##Summaries Created tidy - Created by aggregating the mean of trainAndTest over Subject and Activity
##Transformations Variable labels have been added to trainAndTest as supplied by features.txt Activities have been labeled using the values provided by activity_labels.txt
##Units All units are consistent with the original data and can be read from feature_info.txt Angular velocities are in radians/second. Times are in seconds.