run_analysis.R

Operates on 2 data sets (train and test) representing 561 variables describing 6 physical activities performed by 30 human test subjects using a smart phone attached to their waists.

Processing for this analysis involves item 1-3 done to both test & train data sets:
1) attaching the 561 column names
2) appending a column of the subject's ids,
3) appending another column of the physical activity described per row

4) The test & train data sets are then merged, 
5) The resulting data set is then summarized by test subject and physical activity
6) and a mean is taken of all 561 measures.