Getting and Cleaning Data

Peer Assessments / Getting and Cleaning Data Project

run_analysis.R doing following things:

1. Merges the training and the test sets to create one data set.
2. Extracts only the measurements on the mean and standard deviation for each measurement.
3. Uses descriptive activity names to name the activities in the data set
4. Appropriately labels the data set with descriptive activity names.
5. Creates a second, independent tidy data set with the average of each variable for each activity and each subject.

Execute run_analysis.R:

• just download the Script
• and run it with R -f run_analysis.R
• script download raw data, extract it
• and create 2 files:
  1. merged_tidy_data.csv
  2. average_tidy_data.csv

For more about Data, please see CodeBook