#getting-and-cleaning-data-course-project

Preparation

• Create a directory for this project
• Download the script run_analysis.R and move/save it to the directory created
• Download the raw data from https://d396qusza40orc.cloudfront.net/getdata%2Fprojectfiles%2FUCI%20HAR%20Dataset.zip to the directory created and unzip

Dependencies

The script run_analysis.R needs the libraries plyr and reshape2. Please install them, if you need to. Then you load them via library("plyr")and library("reshape2").

Running the analysis

• Change the working directory in R to the above directory.
• Source the script in R: source("run_analysis.R")
• Execute the function startTidy with no arguments: startTidy()

Two datasets will be written to your working directory now: tidy1.csv and tidy2.csv

Codebook

Information about the datasets is provided in CodeBook.md.

Code

When startTidyis called by the user, the functions getTidy1and getTidy2 are executed, generating the two output files.

The code contains detailed comments on how the script is working.