This project consists of the single R script run_analysis.R.
The script expects to find the sub-directory UCI HAR Dataset and under that
the sub-directories test and train.
Each of these sub-directories contains an activity, subject and observation
file processed and combined into a single data frame by the run_analysis.R
script.
Execute the run_analysis.R script from the project root folder.
A full description of the processes performed by the run_analysis.R script
is given in the CodeBook.md file in this repository.