gettingAndCleaningData

• Dwonload the file if it does not exist
• Unzip the file, if the file exists then Overwrite
• Read the activity lables and features
• Read the train datasets and name the columns
• Read the test datasets and name the columns
• Merging the dataset
• Selecting only the needed variables
• Final dataset with only the needed variables
• Create a dataset from final dataset without the activity type
• Summarizing the finalDataNoActivityType table to include just the mean of each variable for each activity and each subject
• Merging the tidyData with activityType to include descriptive acitvity names
• Export the tidyData set