CleanDataCourseProject

##Usage

1. Extract the dataset into a directory containing run_analysis.R

2. Execute the run_analysis function from run_analysis.R

3. run_analysis() will:

   i. combine the training and test data

   ii. select only the mean and standard deviation for each measurement

   iii. appropriately label the data set and subject activities with descriptive names

   iv. output the mean value of each measurement for every subject and activity to meandata.txt

##Required R Packages

data.table and reshape2 are required to execute run_analysis.R