CodeBook.txt

Code Book

The following names comprise the names of the resulting data set.

activity - the name of the activity performed, one of grouping criteria
subject - the id of the subject performing the activity, one of grouping criteria 

Average Mean Values

The following reference the average of the reported mean values in the data set grouped by activity and subject and will have the units of the values from which they were derived.

Avg_tBodyAcc-mean()-X
Avg_tBodyAcc-mean()-Y
Avg_tBodyAcc-mean()-Z
Avg_tGravityAcc-mean()-X
Avg_tGravityAcc-mean()-Y
Avg_tGravityAcc-mean()-Z
Avg_tBodyAccJerk-mean()-X
Avg_tBodyAccJerk-mean()-Y
Avg_tBodyAccJerk-mean()-Z
Avg_tBodyGyro-mean()-X
Avg_tBodyGyro-mean()-Y
Avg_tBodyGyro-mean()-Z
Avg_tBodyGyroJerk-mean()-X
Avg_tBodyGyroJerk-mean()-Y
Avg_tBodyGyroJerk-mean()-Z
Avg_tBodyAccMag-mean()
Avg_tGravityAccMag-mean()
Avg_tBodyAccJerkMag-mean()
Avg_tBodyGyroMag-mean()
Avg_tBodyGyroJerkMag-mean()
Avg_fBodyAcc-mean()-X
Avg_fBodyAcc-mean()-Y
Avg_fBodyAcc-mean()-Z
Avg_fBodyAcc-meanFreq()-X
Avg_fBodyAcc-meanFreq()-Y
Avg_fBodyAcc-meanFreq()-Z
Avg_fBodyAccJerk-mean()-X
Avg_fBodyAccJerk-mean()-Y
Avg_fBodyAccJerk-mean()-Z
Avg_fBodyAccJerk-meanFreq()-X
Avg_fBodyAccJerk-meanFreq()-Y
Avg_fBodyAccJerk-meanFreq()-Z
Avg_fBodyGyro-mean()-X
Avg_fBodyGyro-mean()-Y
Avg_fBodyGyro-mean()-Z
Avg_fBodyGyro-meanFreq()-X
Avg_fBodyGyro-meanFreq()-Y
Avg_fBodyGyro-meanFreq()-Z
Avg_fBodyAccMag-mean()
Avg_fBodyAccMag-meanFreq()
Avg_fBodyBodyAccJerkMag-mean()
Avg_fBodyBodyAccJerkMag-meanFreq()
Avg_fBodyBodyGyroMag-mean()
Avg_fBodyBodyGyroMag-meanFreq()
Avg_fBodyBodyGyroJerkMag-mean()
Avg_fBodyBodyGyroJerkMag-meanFreq()

The following reference the average standard deviations of the reported measurements for the activity and subject.



Avg_tBodyAcc-std()-X
Avg_tBodyAcc-std()-Y
Avg_tBodyAcc-std()-Z
Avg_tGravityAcc-std()-X
Avg_tGravityAcc-std()-Y
Avg_tGravityAcc-std()-Z
Avg_tBodyAccJerk-std()-X
Avg_tBodyAccJerk-std()-Y
Avg_tBodyAccJerk-std()-Z
Avg_tBodyGyro-std()-X
Avg_tBodyGyro-std()-Y
Avg_tBodyGyro-std()-Z
Avg_tBodyGyroJerk-std()-X
Avg_tBodyGyroJerk-std()-Y
Avg_tBodyGyroJerk-std()-Z
Avg_tBodyAccMag-std()
Avg_tGravityAccMag-std()
Avg_tBodyAccJerkMag-std()
Avg_tBodyGyroMag-std()
Avg_tBodyGyroJerkMag-std()
Avg_fBodyAcc-std()-X
Avg_fBodyAcc-std()-Y
Avg_fBodyAcc-std()-Z
Avg_fBodyAccJerk-std()-X
Avg_fBodyAccJerk-std()-Y
Avg_fBodyAccJerk-std()-Z
Avg_fBodyGyro-std()-X
Avg_fBodyGyro-std()-Y
Avg_fBodyGyro-std()-Z
Avg_fBodyAccMag-std()
Avg_fBodyBodyAccJerkMag-std()
Avg_fBodyBodyGyroMag-std()
Avg_fBodyBodyGyroJerkMag-std()