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Tidying the UCI HAR Dataset

Week 4 Project for "Getting and Cleaning Data" offered by Johns Hopkins University on Coursera

Repository Contents

File or Directory Description
UCI HAR Dataset/ Original raw dataset
tidy_data.txt Tidied dataset
CodeBook.md Code Book describing the tidy dataset
CodeBookTemplate.md Template for the Code Book
generate_codebook.R Script to generate the Code Book from the Code Book Template and tidy dataset
run_analysis.R Script to produce the tidy dataset from the raw dataset

Running the Code

  1. Clone the repo:

    git clone [email protected]:ryanheffernan/getting_and_cleaning_data.git

  2. Execute the R script from the root of the repo:

    cd getting_and_cleaning_data
Rscript run_analysis.R

  3. Alternatively, open run_analysis.R in RStudio and execute it. Ensure to setwd() to the root directory of this repo first.

Updating the Code Book

I'm lazy and didn't want to type out the full variable list by hand, so I use a script to generate a portion of the CodeBook from the tidy dataset as well as a 'template' CodeBook which contains the rest of the code book details.

To update the main contents of the Code Book, edit CodeBookTemplate.md and run generate_codebook.R to update CodeBook.md:

vi CodeBookTemplate.md
...make changes and save...
Rscript generate_codebook.R

To update how the variable list is displayed, edit generate_codebook.R and run as above.