<p>Physician, epidemiologist, and health researcher. Mainly coding in R.</p>
<p>References:</p>
<ul>
<li><a href="https://stackoverflow.com/a/5963610/13968222">How to make a great R reproducible example</a></li>
<li><a href="https://meta.stackoverflow.com/questions/285551/why-should-i-not-upload-images-of-code-data-errors-when-asking-a-question/285557#285557">Why should I not upload images of code or data?</a> and <a href="https://xkcd.com/2116/" rel="nofollow noreferrer">this xkcd</a></li>
<li><a href="https://meta.stackoverflow.com/a/334823/13968222">How do I ask and answer homework questions?</a></li>
</ul>

Andrea M