This code book summarizes the resulting data fields in tidy.txt.
subject- The ID of the test subjectactivity- The type of activity performed when the corresponding measurements were taken
activityLabels: that reads the activity_labels.txt filefeatures: that reads the features.txt filetrain: that holds the training datatest: that holds the testing dataallData: binds the training & testing data together
tBodyAccMeanXtBodyAccMeanYtBodyAccMeanZtBodyAccStdXtBodyAccStdYtBodyAccStdZtGravityAccMeanXtGravityAccMeanYtGravityAccMeanZtGravityAccStdXtGravityAccStdYtGravityAccStdZtBodyAccJerkMeanXtBodyAccJerkMeanYtBodyAccJerkMeanZtBodyAccJerkStdXtBodyAccJerkStdYtBodyAccJerkStdZtBodyGyroMeanXtBodyGyroMeanYtBodyGyroMeanZtBodyGyroStdXtBodyGyroStdYtBodyGyroStdZtBodyGyroJerkMeanXtBodyGyroJerkMeanYtBodyGyroJerkMeanZtBodyGyroJerkStdXtBodyGyroJerkStdYtBodyGyroJerkStdZtBodyAccMagMeantBodyAccMagStdtGravityAccMagMeantGravityAccMagStdtBodyAccJerkMagMeantBodyAccJerkMagStdtBodyGyroMagMeantBodyGyroMagStdtBodyGyroJerkMagMeantBodyGyroJerkMagStdfBodyAccMeanXfBodyAccMeanYfBodyAccMeanZfBodyAccStdXfBodyAccStdYfBodyAccStdZfBodyAccMeanFreqXfBodyAccMeanFreqYfBodyAccMeanFreqZfBodyAccJerkMeanXfBodyAccJerkMeanYfBodyAccJerkMeanZfBodyAccJerkStdXfBodyAccJerkStdYfBodyAccJerkStdZfBodyAccJerkMeanFreqXfBodyAccJerkMeanFreqYfBodyAccJerkMeanFreqZfBodyGyroMeanXfBodyGyroMeanYfBodyGyroMeanZfBodyGyroStdXfBodyGyroStdYfBodyGyroStdZfBodyGyroMeanFreqXfBodyGyroMeanFreqYfBodyGyroMeanFreqZfBodyAccMagMeanfBodyAccMagStdfBodyAccMagMeanFreqfBodyBodyAccJerkMagMeanfBodyBodyAccJerkMagStdfBodyBodyAccJerkMagMeanFreqfBodyBodyGyroMagMeanfBodyBodyGyroMagStdfBodyBodyGyroMagMeanFreqfBodyBodyGyroJerkMagMeanfBodyBodyGyroJerkMagStdfBodyBodyGyroJerkMagMeanFreq
WALKING(value1) : subject was walking during the testWALKING_UPSTAIRS(value2) : subject was walking up a staircase during the testWALKING_DOWNSTAIRS(value3) : subject was walking down a staircase during the testSITTING(value4) : subject was sitting during the testSTANDING(value5): subject was standing during the testLAYING(value6) : subject was laying down during the test