Getting and Cleaning Data Course Project

An R script called run_analysis.R was created to do the following:

1. Merge the two sets of data (training and the test sets) to create one data set.
2. Extract only the measurements on the mean and standard deviation for each measurement.
3. Use descriptive activity names to name the activities in the data set
4. Appropriately labels the data set with descriptive variable names.
5. From the data set in step 4, creates a second, independent tidy data set with the average of each variable for each activity and each subject.