post day 1 updates

docs/modules/Module06-DataSubset.html

@@ -1478,18 +1478,19 @@ <h2>Using indexing and logical operators to rename columns</h2>
 <div class="cell-output cell-output-stdout">
 <pre><code>[1] FALSE  TRUE FALSE FALSE FALSE</code></pre>
 </div>
-<div class="sourceCode cell-code" id="cb73"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb73-1"><a></a>cn[cn<span class="sc">==</span><span class="st">"IgG_concentration"</span>] <span class="ot">&lt;-</span><span class="st">"IgG_concentration_mIU"</span> <span class="co">#rename cn to "IgG_concentration_mIU" when cn is "IgG_concentration"</span></span>
+<div class="sourceCode cell-code" id="cb73"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb73-1"><a></a>cn[cn<span class="sc">==</span><span class="st">"IgG_concentration"</span>] <span class="ot">&lt;-</span><span class="st">"IgG_concentration_IU/mL"</span> <span class="co">#rename cn to "IgG_concentration_IU" when cn is "IgG_concentration"</span></span>
 <span id="cb73-2"><a></a><span class="fu">colnames</span>(df) <span class="ot">&lt;-</span> cn</span>
 <span id="cb73-3"><a></a><span class="fu">colnames</span>(df)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
 <div class="cell-output cell-output-stdout">
-<pre><code>[1] "observation_id"        "IgG_concentration_mIU" "age"                  
-[4] "gender"                "slum"                 </code></pre>
+<pre><code>[1] "observation_id"          "IgG_concentration_IU/mL"
+[3] "age"                     "gender"                 
+[5] "slum"                   </code></pre>
 </div>
 </div>
 <p><br></p>
 <p>Note, I am resetting the column name back to the original name for the sake of the rest of the module.</p>
 <div class="cell">
-<div class="sourceCode cell-code" id="cb75"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb75-1"><a></a><span class="fu">colnames</span>(df)[<span class="fu">colnames</span>(df)<span class="sc">==</span><span class="st">"IgG_concentration_mIU"</span>] <span class="ot">&lt;-</span> <span class="st">"IgG_concentration"</span> <span class="co">#reset</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
+<div class="sourceCode cell-code" id="cb75"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb75-1"><a></a><span class="fu">colnames</span>(df)[<span class="fu">colnames</span>(df)<span class="sc">==</span><span class="st">"IgG_concentration_IU/mL"</span>] <span class="ot">&lt;-</span> <span class="st">"IgG_concentration"</span> <span class="co">#reset</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
 </div>
 </section>
 <section id="using-indexing-and-logical-operators-to-subset-data" class="slide level2">

docs/modules/Module07-VarCreationClassesSummaries.html

@@ -616,7 +616,7 @@ <h2>Adding new columns with <code>transform()</code></h2>
 </section>
 <section id="creating-conditional-variables" class="slide level2">
 <h2>Creating conditional variables</h2>
-<p>One frequently used tool is creating variables with conditions. A general function for creating new variables based on existing variables is the Base R <code>ifelse()</code> function, which “returns a value depending on whether the element of test is <code>TRUE</code> or <code>FALSE</code>.”</p>
+<p>One frequently used tool is creating variables with conditions. A general function for creating new variables based on existing variables is the Base R <code>ifelse()</code> function, which “returns a value depending on whether the element of test is <code>TRUE</code> or <code>FALSE</code> or <code>NA</code>.</p>
 <div class="cell">
 <div class="sourceCode cell-code" id="cb9"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb9-1"><a></a>?ifelse</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
 </div>
@@ -1584,7 +1584,7 @@ <h2>Numeric variable data summary</h2>
 </section>
 <section id="numeric-variable-data-summary-1" class="slide level2">
 <h2>Numeric variable data summary</h2>
-<p>Let’s look at a help file for <code>mean()</code> to make note of the <code>na.rm</code> argument</p>
+<p>Let’s look at a help file for <code>range()</code> to make note of the <code>na.rm</code> argument</p>
 <div class="cell">
 <div class="sourceCode cell-code" id="cb96"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb96-1"><a></a>?range</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
 </div>
@@ -2067,7 +2067,7 @@ <h2>Summary</h2>
 <li>One useful function for creating new variables based on existing variables is the <code>ifelse()</code> function, which returns a value depending on whether the element of test is <code>TRUE</code> or <code>FALSE</code></li>
 <li>The <code>class()</code> function allows you to evaluate the class of an object.</li>
 <li>There are two types of numeric class objects: integer and double</li>
-<li>Logical class objects only have <code>TRUE</code> or <code>False</code> (without quotes)</li>
+<li>Logical class objects only have <code>TRUE</code> or <code>FALSE</code> or <code>NA</code> (without quotes)</li>
 <li><code>is.CLASS_NAME(x)</code> can be used to test the class of an object x</li>
 <li><code>as.CLASS_NAME(x)</code> can be used to change the class of an object x</li>
 <li>Factors are a special character class that has levels</li>