CodeBook for Getting and Cleaning Data Course Project
Variable 1: activity name Description: Name of the activity being measured Range of Values: LAYING SITTING STANDING WALKING WALKING_DOWNSTAIRS WALKING_UPSTAIRS
Variable 2: subject Description: Numeric identifier for the subject (person) being measured Range of values: 1 through 30
All other variables, listed below, are measurements taken by the Samsung Galaxy S smartphone's accelerometer during the experiment. The values listed in the final tidy data set are the averages of each of these variables for each activity and each subject.
List of other variables:
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