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<title>Jem Arnold</title>
<link>https://jemarnold.ca/blog/</link>
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<description>Jem Arnold. Exercise physiologist, physiotherapist, sport &amp; data scientist. Muscle oxygenation (NIRS), flow limitations in the iliac arteries (FLIA), R.</description>
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<item>
  <title>Hello, world</title>
  <dc:creator>Jem Arnold</dc:creator>
  <link>https://jemarnold.ca/blog/posts/2026-09-05-hello-world/</link>
  <description><![CDATA[ 





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<p>This site is a Quarto website. Posts are <code>.qmd</code> files under <code>blog/posts/</code>, each in its own folder, and can include executable R code.</p>
<div class="cell">
<div class="code-copy-outer-scaffold"><div class="sourceCode cell-code" id="cb1" style="background: #f1f3f5;"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb1-1">x <span class="ot" style="color: #003B4F;
background-color: null;
font-style: inherit;">&lt;-</span> <span class="fu" style="color: #4758AB;
background-color: null;
font-style: inherit;">seq</span>(<span class="dv" style="color: #AD0000;
background-color: null;
font-style: inherit;">0</span>, <span class="dv" style="color: #AD0000;
background-color: null;
font-style: inherit;">6</span> <span class="sc" style="color: #5E5E5E;
background-color: null;
font-style: inherit;">*</span> pi, <span class="at" style="color: #657422;
background-color: null;
font-style: inherit;">length.out =</span> <span class="dv" style="color: #AD0000;
background-color: null;
font-style: inherit;">300</span>)</span>
<span id="cb1-2"><span class="fu" style="color: #4758AB;
background-color: null;
font-style: inherit;">plot</span>(</span>
<span id="cb1-3">    x,</span>
<span id="cb1-4">    <span class="fu" style="color: #4758AB;
background-color: null;
font-style: inherit;">exp</span>(<span class="sc" style="color: #5E5E5E;
background-color: null;
font-style: inherit;">-</span>x <span class="sc" style="color: #5E5E5E;
background-color: null;
font-style: inherit;">/</span> <span class="dv" style="color: #AD0000;
background-color: null;
font-style: inherit;">8</span>) <span class="sc" style="color: #5E5E5E;
background-color: null;
font-style: inherit;">*</span> <span class="fu" style="color: #4758AB;
background-color: null;
font-style: inherit;">sin</span>(x),</span>
<span id="cb1-5">    <span class="at" style="color: #657422;
background-color: null;
font-style: inherit;">type =</span> <span class="st" style="color: #20794D;
background-color: null;
font-style: inherit;">"l"</span>,</span>
<span id="cb1-6">    <span class="at" style="color: #657422;
background-color: null;
font-style: inherit;">lwd =</span> <span class="dv" style="color: #AD0000;
background-color: null;
font-style: inherit;">2</span>,</span>
<span id="cb1-7">    <span class="at" style="color: #657422;
background-color: null;
font-style: inherit;">col =</span> <span class="st" style="color: #20794D;
background-color: null;
font-style: inherit;">"#5b8db8"</span>,</span>
<span id="cb1-8">    <span class="at" style="color: #657422;
background-color: null;
font-style: inherit;">xlab =</span> <span class="st" style="color: #20794D;
background-color: null;
font-style: inherit;">"x"</span>,</span>
<span id="cb1-9">    <span class="at" style="color: #657422;
background-color: null;
font-style: inherit;">ylab =</span> <span class="st" style="color: #20794D;
background-color: null;
font-style: inherit;">"y"</span>,</span>
<span id="cb1-10">    <span class="at" style="color: #657422;
background-color: null;
font-style: inherit;">bty =</span> <span class="st" style="color: #20794D;
background-color: null;
font-style: inherit;">"l"</span>,</span>
<span id="cb1-11">    <span class="at" style="color: #657422;
background-color: null;
font-style: inherit;">las =</span> <span class="dv" style="color: #AD0000;
background-color: null;
font-style: inherit;">1</span></span>
<span id="cb1-12">)</span></code></pre></div></div>
<div class="cell-output-display">
<div id="fig-demo" class="quarto-float quarto-figure quarto-figure-center" alt="Line plot of a damped sine wave, demonstrating executed R code in a post." width="100%">
<figure class="quarto-float quarto-float-fig figure">
<div aria-describedby="fig-demo-caption-0ceaefa1-69ba-4598-a22c-09a6ac19f8ca">
<img src="https://jemarnold.ca/blog/posts/2026-09-05-hello-world/index_files/figure-html/fig-demo-1.png" id="fig-demo" class="img-fluid figure-img" style="width:100.0%" alt="Line plot of a damped sine wave, demonstrating executed R code in a post.">
</div>
<figcaption class="quarto-float-caption-bottom quarto-float-caption quarto-float-fig quarto-uncaptioned" id="fig-demo-caption-0ceaefa1-69ba-4598-a22c-09a6ac19f8ca">
Figure&nbsp;1
</figcaption>
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<p>Computed output is frozen (<code>freeze: true</code> in <code>blog/posts/_metadata.yml</code>), so re-rendering the site does not re-run old posts.</p>



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  <guid>https://jemarnold.ca/blog/posts/2026-09-05-hello-world/</guid>
  <pubDate>Sat, 05 Sep 2026 07:00:00 GMT</pubDate>
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