davoodqorbani / getdata-007

Getting and Cleaning Data

READ ME

Note 1: If you previuosly downloded the data set, just create 'jtleek' folder in your working directory and put a copy of the data set in it. I mean the ZIP file itself; its name should be

getdata_projectfiles_UCI HAR Dataset.zip

How my R script works!

Download 'run_analysis.R' file and put it in your R working directory. Then run the following code in your R console:

source("run_analysis.R")

Note 2: This script checks the existence of 'jtleek' folder and the data set before creating the mentioned folder and downloading the file.

This R script creates jtleek folder in your working directoty.
Trivia: I chose 'jtleek' to show my respect for the instructor of this course =)

Then it downloads a data set from

https://d396qusza40orc.cloudfront.net/getdata%2Fprojectfiles%2FUCI%20HAR%20Dataset.zip

This script unzips the data set and after performing the codes, it creates a tidy data set (please refer to CodeBook.md) and puts it in 'jtleek' folder of your working directory.

Finally, it performs a little housekeeping and deletes the folder of unzipped data set. But It keeps the ZIP file itself.

Required libraries / Packages

reshape2
plyr

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License:

Davood Qorbani (www.qorbani.info), SEP 2014