This project is done as a part of Getting and Cleaning Data Course in coursera.
The R script, run_analysis.R, does the following:
- Download the dataset if it does not already exist in the working directory. And keep it in the working directory. Data can be downloaded from this link: https://d396qusza40orc.cloudfront.net/getdata%2Fprojectfiles%2FUCI%20HAR%20Dataset.zip
- Load the activity and feature info
- Loads both the training and test datasets, keeping only those columns which reflect a mean or standard deviation
- Loads the activity and subject data for each dataset, and merges those columns with the dataset
- Merges the two datasets
- Converts the activity and subject columns into factors
- Creates a tidy dataset that consists of the average (mean) value of each variable for each subject and activity pair.
- The end result is shown in the file tidy.txt.