You should create one R script called run_analysis.R that does the following.
- Merges the training and the test sets to create one data set.
- Extracts only the measurements on the mean and standard deviation for each measurement.
- Uses descriptive activity names to name the activities in the data set
- Appropriately labels the data set with descriptive variable names.
- 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.
Download the data set from the following URL: https://d396qusza40orc.cloudfront.net/getdata%2Fprojectfiles%2FUCI%20HAR%20Dataset.zip
Unzip the files to a "UCI HAR Dataset" folder in your working dictory.
You will need the "reshape2" library installed. Run the run_analysis.R script. This will do steps 1 to 5 from above and output a tidy data set file called "tidyData.txt".