run_analysis.R is an R script which processes data as required for Getting and Cleaning Data Course Project.

Prerequisites:

1. dplyr library should be installed on your system. It is used to summarise data
2. data should be in the directory structure resulting from unzipping the Dataset
3. working directory should be set to the toplevel Dataset directory (UCI HAR Dataset)

Input:

1. Sensor measurements files from Samsung phones

Output:

1. tidyDataSet.txt containing required data

Usage:

1. put the script in the UCI HAR Dataset directory
2. change your working dir to UCI HAR Dataset directory
3. execute script with source("run_analysis.R")