Variables in resulting dataset:
- subject - a subject of experiment
- activity - a type of activity, performed by subject. This variable could have one of the following values:
WALKING
WALKING_UPSTAIRS
WALKING_DOWNSTAIRS
SITTING
STANDING
LAYING - measurement - a type of measure for each activity. Name of the measurements have the following format:
{signal}.{method}...{axis}, where:- {signal} - signals from accelerometer and gyroscope. Have following values:
tBodyAcc-XYZ
tGravityAcc-XYZ
tBodyAccJerk-XYZ
tBodyGyro-XYZ
tBodyGyroJerk-XYZ
tBodyAccMag
tGravityAccMag
tBodyAccJerkMag
tBodyGyroMag
tBodyGyroJerkMag
fBodyAcc-XYZ
fBodyAccJerk-XYZ
fBodyGyro-XYZ
fBodyAccMag
fBodyAccJerkMag
fBodyGyroMag
fBodyGyroJerkMag - {method} - how those signals were estimated into variables. For this project it can be:
mean: Mean value
std: Standard deviation - {axis} - X, Y or Z direction of measurement
- {signal} - signals from accelerometer and gyroscope. Have following values:
- average - average value for each subject, activity and measurement. Normalized double-precision number.