diff --git a/30-dplyr.html b/30-dplyr.html
index 57381e721..bcb6f85ee 100644
--- a/30-dplyr.html
+++ b/30-dplyr.html
@@ -277,7 +277,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Manipulating and analysing data with dplyr</h1>
-        <p> Last updated on 2023-09-06 | 
+        <p> Last updated on 2023-09-26 | 
         
         <a href="https://github.com/carpentries-incubator/bioc-intro/edit/main/episodes/30-dplyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1696,7 +1696,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
 </h3>
 <pre class="downlit sourceCode r">
-<code class="sourceCode R"><span><span class="va">rna_with_missing_values</span></span></code></pre>
+<code class="sourceCode R"><span><span class="va">rna_with_missing_values</span> <span class="op">&lt;-</span> <span class="va">rna</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">select</span><span class="op">(</span><span class="va">gene</span>, <span class="va">sample</span>, <span class="va">expression</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="va">gene</span> <span class="op">%in%</span> <span class="fu">c</span><span class="op">(</span><span class="st">"Asl"</span>, <span class="st">"Apod"</span>, <span class="st">"Cyp2d22"</span><span class="op">)</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="va">sample</span> <span class="op">%in%</span> <span class="fu">c</span><span class="op">(</span><span class="st">"GSM2545336"</span>, <span class="st">"GSM2545337"</span>, <span class="st">"GSM2545338"</span><span class="op">)</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">arrange</span><span class="op">(</span><span class="va">sample</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="op">!</span><span class="op">(</span><span class="va">gene</span> <span class="op">==</span> <span class="st">"Cyp2d22"</span> <span class="op">&amp;</span> <span class="va">sample</span> <span class="op">!=</span> <span class="st">"GSM2545338"</span><span class="op">)</span><span class="op">)</span></span>
+<span><span class="va">rna_with_missing_values</span></span></code></pre>
 </div>
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2797,7 +2803,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://carpentries-incubator.github.io/bioc-intro/30-dplyr.html",
   "identifier": "https://carpentries-incubator.github.io/bioc-intro/30-dplyr.html",
   "dateCreated": "2020-09-14",
-  "dateModified": "2023-09-06",
+  "dateModified": "2023-09-26",
   "datePublished": "2023-09-26"
 }
 
diff --git a/40-visualization.html b/40-visualization.html
index d66136f3a..b600407d3 100644
--- a/40-visualization.html
+++ b/40-visualization.html
@@ -459,7 +459,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb11">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -535,7 +535,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb16">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -725,7 +725,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -769,7 +769,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb32">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -825,7 +825,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>We should switch the order of these two geoms:</p>
 <div class="codewrapper sourceCode" id="cb35">
@@ -879,7 +879,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -934,7 +934,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb39">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -969,7 +969,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb40">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1186,7 +1186,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb56">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1369,7 +1369,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <p>For example, based on this plot:</p>
 <div class="codewrapper sourceCode" id="cb65">
diff --git a/aio.html b/aio.html
index e1523186a..3d1526a4a 100644
--- a/aio.html
+++ b/aio.html
@@ -4934,7 +4934,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </ol>
 </div></section><section id="aio-30-dplyr"><p>Content from <a href="30-dplyr.html">Manipulating and analysing data with dplyr</a></p>
 <hr>
-<p> Last updated on 2023-09-06 | 
+<p> Last updated on 2023-09-26 | 
         
         <a href="https://github.com/carpentries-incubator/bioc-intro/edit/main/episodes/30-dplyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -6372,7 +6372,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
 </h3>
 <pre class="downlit sourceCode r">
-<code class="sourceCode R"><span><span class="va">rna_with_missing_values</span></span></code></pre>
+<code class="sourceCode R"><span><span class="va">rna_with_missing_values</span> <span class="op">&lt;-</span> <span class="va">rna</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">select</span><span class="op">(</span><span class="va">gene</span>, <span class="va">sample</span>, <span class="va">expression</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="va">gene</span> <span class="op">%in%</span> <span class="fu">c</span><span class="op">(</span><span class="st">"Asl"</span>, <span class="st">"Apod"</span>, <span class="st">"Cyp2d22"</span><span class="op">)</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="va">sample</span> <span class="op">%in%</span> <span class="fu">c</span><span class="op">(</span><span class="st">"GSM2545336"</span>, <span class="st">"GSM2545337"</span>, <span class="st">"GSM2545338"</span><span class="op">)</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">arrange</span><span class="op">(</span><span class="va">sample</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="op">!</span><span class="op">(</span><span class="va">gene</span> <span class="op">==</span> <span class="st">"Cyp2d22"</span> <span class="op">&amp;</span> <span class="va">sample</span> <span class="op">!=</span> <span class="st">"GSM2545338"</span><span class="op">)</span><span class="op">)</span></span>
+<span><span class="va">rna_with_missing_values</span></span></code></pre>
 </div>
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7610,7 +7616,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb11">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7689,7 +7695,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb16">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7885,7 +7891,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7930,7 +7936,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb32">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7988,7 +7994,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>We should switch the order of these two geoms:</p>
 <div class="codewrapper sourceCode" id="cb35">
@@ -8043,7 +8049,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8101,7 +8107,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb39">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8139,7 +8145,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb40">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8359,7 +8365,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb56">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8547,7 +8553,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <p>For example, based on this plot:</p>
 <div class="codewrapper sourceCode" id="cb65">
diff --git a/index.html b/index.html
index 229db0d50..14ca538fd 100644
--- a/index.html
+++ b/index.html
@@ -291,7 +291,7 @@ <h4 class="accordion-header" id="headingSolution1">
   If you already have R and RStudio installed
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ul><li><p>Open RStudio, and click on “Help” &gt; “Check for updates”. If a
 new version is available, quit RStudio, and download the latest version
@@ -317,7 +317,7 @@ <h4 class="accordion-header" id="headingSolution2">
   If you don’t have R and RStudio installed
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ul><li><p>Download R from the <a href="https://cran.r-project.org/bin/windows/base/release.htm" class="external-link">CRAN
 website</a>.</p></li>
@@ -347,7 +347,7 @@ <h4 class="accordion-header" id="headingSolution3">
   If you already have R and RStudio installed
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ul><li><p>Open RStudio, and click on “Help” &gt; “Check for updates”. If a
 new version is available, quit RStudio, and download the latest version
@@ -371,7 +371,7 @@ <h4 class="accordion-header" id="headingSolution4">
   If you don’t have R and RStudio installed
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ul><li><p>Download R from the <a href="https://cran.r-project.org/bin/macosx/" class="external-link">CRAN website</a>.</p></li>
 <li><p>Select the <code>.pkg</code> file for the latest R
@@ -404,7 +404,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Install R using your package manager and RStudio
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ul><li>Follow the instructions for your distribution from <a href="https://cloud.r-project.org/bin/linux" class="external-link">CRAN</a>, they provide
 information to get the most recent version of R for common
diff --git a/instructor/30-dplyr.html b/instructor/30-dplyr.html
index 0213df5a8..f4a930ae5 100644
--- a/instructor/30-dplyr.html
+++ b/instructor/30-dplyr.html
@@ -276,7 +276,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Manipulating and analysing data with dplyr</h1>
-        <p> Last updated on 2023-09-06 | 
+        <p> Last updated on 2023-09-26 | 
         
         <a href="https://github.com/carpentries-incubator/bioc-intro/edit/main/episodes/30-dplyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1697,7 +1697,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
 </h3>
 <pre class="downlit sourceCode r">
-<code class="sourceCode R"><span><span class="va">rna_with_missing_values</span></span></code></pre>
+<code class="sourceCode R"><span><span class="va">rna_with_missing_values</span> <span class="op">&lt;-</span> <span class="va">rna</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">select</span><span class="op">(</span><span class="va">gene</span>, <span class="va">sample</span>, <span class="va">expression</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="va">gene</span> <span class="op">%in%</span> <span class="fu">c</span><span class="op">(</span><span class="st">"Asl"</span>, <span class="st">"Apod"</span>, <span class="st">"Cyp2d22"</span><span class="op">)</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="va">sample</span> <span class="op">%in%</span> <span class="fu">c</span><span class="op">(</span><span class="st">"GSM2545336"</span>, <span class="st">"GSM2545337"</span>, <span class="st">"GSM2545338"</span><span class="op">)</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">arrange</span><span class="op">(</span><span class="va">sample</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="op">!</span><span class="op">(</span><span class="va">gene</span> <span class="op">==</span> <span class="st">"Cyp2d22"</span> <span class="op">&amp;</span> <span class="va">sample</span> <span class="op">!=</span> <span class="st">"GSM2545338"</span><span class="op">)</span><span class="op">)</span></span>
+<span><span class="va">rna_with_missing_values</span></span></code></pre>
 </div>
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2798,7 +2804,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://carpentries-incubator.github.io/bioc-intro/instructor/30-dplyr.html",
   "identifier": "https://carpentries-incubator.github.io/bioc-intro/instructor/30-dplyr.html",
   "dateCreated": "2020-09-14",
-  "dateModified": "2023-09-06",
+  "dateModified": "2023-09-26",
   "datePublished": "2023-09-26"
 }
 
diff --git a/instructor/40-visualization.html b/instructor/40-visualization.html
index 85e9fbc92..ac9162255 100644
--- a/instructor/40-visualization.html
+++ b/instructor/40-visualization.html
@@ -460,7 +460,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb11">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -536,7 +536,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb16">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -726,7 +726,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -770,7 +770,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb32">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -826,7 +826,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>We should switch the order of these two geoms:</p>
 <div class="codewrapper sourceCode" id="cb35">
@@ -880,7 +880,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -935,7 +935,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb39">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -970,7 +970,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb40">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1187,7 +1187,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb56">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1370,7 +1370,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <p>For example, based on this plot:</p>
 <div class="codewrapper sourceCode" id="cb65">
diff --git a/instructor/aio.html b/instructor/aio.html
index 9df638b8f..11cf8f33c 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -4934,7 +4934,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </ol>
 </div></section><section id="aio-30-dplyr"><p>Content from <a href="30-dplyr.html">Manipulating and analysing data with dplyr</a></p>
 <hr>
-<p> Last updated on 2023-09-06 | 
+<p> Last updated on 2023-09-26 | 
         
         <a href="https://github.com/carpentries-incubator/bioc-intro/edit/main/episodes/30-dplyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 150 minutes </p>
@@ -6373,7 +6373,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
 </h3>
 <pre class="downlit sourceCode r">
-<code class="sourceCode R"><span><span class="va">rna_with_missing_values</span></span></code></pre>
+<code class="sourceCode R"><span><span class="va">rna_with_missing_values</span> <span class="op">&lt;-</span> <span class="va">rna</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">select</span><span class="op">(</span><span class="va">gene</span>, <span class="va">sample</span>, <span class="va">expression</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="va">gene</span> <span class="op">%in%</span> <span class="fu">c</span><span class="op">(</span><span class="st">"Asl"</span>, <span class="st">"Apod"</span>, <span class="st">"Cyp2d22"</span><span class="op">)</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="va">sample</span> <span class="op">%in%</span> <span class="fu">c</span><span class="op">(</span><span class="st">"GSM2545336"</span>, <span class="st">"GSM2545337"</span>, <span class="st">"GSM2545338"</span><span class="op">)</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">arrange</span><span class="op">(</span><span class="va">sample</span><span class="op">)</span> <span class="op">%&gt;%</span></span>
+<span>  <span class="fu">filter</span><span class="op">(</span><span class="op">!</span><span class="op">(</span><span class="va">gene</span> <span class="op">==</span> <span class="st">"Cyp2d22"</span> <span class="op">&amp;</span> <span class="va">sample</span> <span class="op">!=</span> <span class="st">"GSM2545338"</span><span class="op">)</span><span class="op">)</span></span>
+<span><span class="va">rna_with_missing_values</span></span></code></pre>
 </div>
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7612,7 +7618,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb11">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7691,7 +7697,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb16">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7887,7 +7893,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7932,7 +7938,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb32">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -7990,7 +7996,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>We should switch the order of these two geoms:</p>
 <div class="codewrapper sourceCode" id="cb35">
@@ -8045,7 +8051,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8103,7 +8109,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb39">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8141,7 +8147,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb40">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8361,7 +8367,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb56">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8549,7 +8555,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <p>For example, based on this plot:</p>
 <div class="codewrapper sourceCode" id="cb65">
diff --git a/instructor/index.html b/instructor/index.html
index a319f5d2a..235a489ff 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -374,7 +374,7 @@ <h4 class="accordion-header" id="headingSolution1">
   If you already have R and RStudio installed
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ul><li><p>Open RStudio, and click on “Help” &gt; “Check for updates”. If a
 new version is available, quit RStudio, and download the latest version
@@ -400,7 +400,7 @@ <h4 class="accordion-header" id="headingSolution2">
   If you don’t have R and RStudio installed
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ul><li><p>Download R from the <a href="https://cran.r-project.org/bin/windows/base/release.htm" class="external-link">CRAN
 website</a>.</p></li>
@@ -430,7 +430,7 @@ <h4 class="accordion-header" id="headingSolution3">
   If you already have R and RStudio installed
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ul><li><p>Open RStudio, and click on “Help” &gt; “Check for updates”. If a
 new version is available, quit RStudio, and download the latest version
@@ -454,7 +454,7 @@ <h4 class="accordion-header" id="headingSolution4">
   If you don’t have R and RStudio installed
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ul><li><p>Download R from the <a href="https://cran.r-project.org/bin/macosx/" class="external-link">CRAN website</a>.</p></li>
 <li><p>Select the <code>.pkg</code> file for the latest R
@@ -487,7 +487,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Install R using your package manager and RStudio
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ul><li>Follow the instructions for your distribution from <a href="https://cloud.r-project.org/bin/linux" class="external-link">CRAN</a>, they provide
 information to get the most recent version of R for common
diff --git a/md5sum.txt b/md5sum.txt
index e30f549f1..faa7f75ec 100644
--- a/md5sum.txt
+++ b/md5sum.txt
@@ -7,7 +7,7 @@
 "episodes/20-r-rstudio.Rmd" "e79b79ff6a51ce5e2b2cc55ce32016d2" "site/built/20-r-rstudio.md" "2023-09-06"
 "episodes/23-starting-with-r.Rmd" "5ef5989f0c01ebea6a48e930ec6a5066" "site/built/23-starting-with-r.md" "2023-09-06"
 "episodes/25-starting-with-data.Rmd" "e4085154bf5a849ad4d8fbddb0293903" "site/built/25-starting-with-data.md" "2023-09-06"
-"episodes/30-dplyr.Rmd" "9ef109d78cbd97700c4f9fc2987f59e1" "site/built/30-dplyr.md" "2023-09-06"
+"episodes/30-dplyr.Rmd" "30aa6b83ec8528361708410563bdbf1c" "site/built/30-dplyr.md" "2023-09-26"
 "episodes/40-visualization.Rmd" "0087460a2ed16ada100c6053b4f20e6e" "site/built/40-visualization.md" "2023-09-06"
 "episodes/60-next-steps.Rmd" "1529cdb71ed356a41d6a84c65c860fbe" "site/built/60-next-steps.md" "2023-09-06"
 "instructors/instructor-notes.md" "a59fd3b94c07c3fe3218c054a0f03277" "site/built/instructor-notes.md" "2023-09-06"
diff --git a/pkgdown.yml b/pkgdown.yml
index ad45226d4..27b711dd9 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 2.19.2
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
-last_built: 2023-09-26T00:35Z
+last_built: 2023-09-26T05:31Z