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-<body>
-<div class="slide titlepage">
- <h1 class="title">Quiz</h1>
- <h1 class="subtitle">Daten bändigen & visualisieren</h1>
- <p class="author">
-B. Philipp Kleer
- </p>
- <p class="date">11. Oktober 2021</p>
-</div>
-<div id="was-macht-der-folgende-code" class="slide section level2">
-<h1>Was macht der folgende Code?</h1>
-<div class="sourceCode" id="cb1"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>df <span class="sc">%>%</span> </span>
-<span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">slice</span>(<span class="fu">seq</span>(<span class="dv">1</span>, </span>
-<span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a> <span class="dv">1000</span>, </span>
-<span id="cb1-4"><a href="#cb1-4" aria-hidden="true" tabindex="-1"></a> <span class="dv">100</span>)) <span class="sc">%>%</span> </span>
-<span id="cb1-5"><a href="#cb1-5" aria-hidden="true" tabindex="-1"></a> <span class="fu">filter</span>(os <span class="sc">==</span> <span class="st">"iOS"</span>) <span class="sc">%>%</span></span>
-<span id="cb1-6"><a href="#cb1-6" aria-hidden="true" tabindex="-1"></a> <span class="fu">group_by</span>(device) <span class="sc">%>%</span> </span>
-<span id="cb1-7"><a href="#cb1-7" aria-hidden="true" tabindex="-1"></a> <span class="fu">summarize</span>(<span class="fu">mean</span>(timeOfUse))</span></code></pre></div>
-<ul class="incremental">
-<li>der Datensatz <code>df</code> wird geteilt, wie wählen mit <code>seq()</code> jeden 100. Fall</li>
-<li>wir nehmen daraus dann nur Fälle, deren Variable <code>os</code> gleich <code>"iOS"</code> ist</li>
-<li>dann sortieren wir nachd er Variable <code>device</code></li>
-<li>zuletzt lassen wir den Mittelwert der Variable <code>timeOfUse</code> gruppiert nach <code>device</code> ausgeben.</li>
-</ul>
-</div>
-<div id="und-was-macht-dieser-code" class="slide section level2">
-<h1>Und was macht dieser Code?</h1>
-<div class="sourceCode" id="cb2"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>df <span class="sc">%>%</span> </span>
-<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">select</span>(gndr, income, residence, inhabitants) <span class="sc">%>%</span> </span>
-<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a> <span class="fu">bind_rows</span>(df2) <span class="sc">%>%</span> </span>
-<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a> <span class="fu">mutate</span>(<span class="at">sizeOfTown =</span> <span class="fu">case_when</span>(inhabitants <span class="sc"><</span> <span class="dv">10000</span> <span class="sc">~</span> <span class="st">"small town"</span>,</span>
-<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a> inhabitants <span class="sc">></span> <span class="dv">10000</span> <span class="sc">&</span> inhabitants <span class="sc"><</span> <span class="dv">50000</span> <span class="sc">~</span> <span class="st">"city"</span>,</span>
-<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a> inhabitants <span class="sc">></span> <span class="dv">50000</span> <span class="sc">~</span> <span class="st">"large city"</span>))</span></code></pre></div>
-<ul class="incremental">
-<li>aus dem Datensatz <code>df</code> werden die Variablen <code>gndr</code>, <code>income</code>, <code>residence</code> und <code>inhabitants</code> gefiltert</li>
-<li>danach fügen wir die Fälle aus dem Datensatz <code>df2</code> hinzu.</li>
-<li>zuletzt schaffen wir eine neue Variable <code>sizeOfTown</code>, die der Höhe der Einwohner:innen eine Beschreibung zuordnet (ordinale Variable)</li>
-</ul>
-</div>
-<div id="und-was-macht-dieser-code-1" class="slide section level2">
-<h1>Und was macht dieser Code?</h1>
-<div class="sourceCode" id="cb3"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>df <span class="sc">%>%</span> </span>
-<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">bind_rows</span>(df3) <span class="sc">%>%</span> </span>
-<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a> <span class="fu">filter</span>(income <span class="sc">></span><span class="er">></span> <span class="dv">1000</span> <span class="sc">&&</span> <span class="at">gndr =</span> <span class="st">"female"</span>) <span class="sc">%>%</span> </span>
-<span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a> <span class="fu">mutate</span>(<span class="at">sizeOfTown =</span> <span class="fu">case_when</span>(inhabitants <span class="sc"><</span> <span class="dv">10000</span> <span class="sc">~</span> <span class="st">"small town"</span>,</span>
-<span id="cb3-5"><a href="#cb3-5" aria-hidden="true" tabindex="-1"></a> inhabitants <span class="sc">></span> <span class="dv">10000</span> <span class="sc">&</span> inhabitants <span class="sc"><</span> <span class="dv">50000</span> <span class="sc">~</span> <span class="st">"city"</span>,</span>
-<span id="cb3-6"><a href="#cb3-6" aria-hidden="true" tabindex="-1"></a> inhabitants <span class="sc">></span> <span class="dv">50000</span> <span class="sc">~</span> <span class="st">"large city"</span>))</span></code></pre></div>
-<ul class="incremental">
-<li>fehlerhaft Code!</li>
-<li>in <code>filter()</code> genutzte Anweisungen sind falsch!</li>
-<li>korrekt ist: <code>filter(income > 1000 & gndr == "female")</code></li>
-</ul>
-</div>
-<div id="das-wars-ab-zu-ggplot" class="slide section level2">
-<h1>Das war’s! Ab zu <code>ggplot</code>!</h1>
-</div>
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