Create run_analysis.R

# DataSource for the project:
# https://d396qusza40orc.cloudfront.net/getdata%2Fprojectfiles%2FUCI%20HAR%20Dataset.zip 
# The data linked to from the course website represent data collected from the accelerometers from the Samsung Galaxy S smartphone.
# A full description is available at the site where the data was obtained: 
# http://archive.ics.uci.edu/ml/datasets/Human+Activity+Recognition+Using+Smartphones