Getting-and-Cleaning-Data-Course-Project

Instruction

This is the final project of JHU Getting and Cleaning Data Course. The purpose of this project is to demonstrate your ability to collect, work with, and clean a data set. The goal is to prepare tidy data that can be used for later analysis.

The Data

The URL of the Data: http://archive.ics.uci.edu/ml/datasets/Human+Activity+Recognition+Using+Smartphones

The analyze steps

  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 variable names.
  5. From the data set in step 4, creates a second, independent tidy data set with the average of each variable for each activity and each subject.