> s_complete$Dotcounting_SNB[s_complete$Dotcounting_SNB == "missing"] <- NA > table(s_complete$Dotcounting_SNB) A-B-C-D A-C-B-D A-D-B-C B-A-C-D B-A-D-C B-C B-C-D-A D-C-B-A missing 2711 80 80 159 80 80 80 159 0

### Getting and Cleaning Data

#### Installation

Download and install the latest version of [R](https://cran.r-project.org/), and [RStudio](https://www.rstudio.com/products/rstudio/download/).

Clone the [GitHub repo](https://github.com/bkkaggle/getting-cleaning-data) or download the zip file and extract.

#### Usage

Open the `run_analysis.R` file in RStudio.

Set the working directory to the extracted directory.

Source the script