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 <!doctype html><html lang=en class="js csstransforms3d"><head><meta charset=utf-8><meta name=description content="learning materials for the data librarian course"><meta name=author content="Malte Bonart, Ania Lopez and Konrad Förstner"><link rel=icon href=/2023-2024-ZK_Data_Librarian_Modul_3/images/favicon.png type=image/png><title>404 Page not found</title>
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 <!doctype html><html lang=en class="js csstransforms3d"><head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1"><meta name=generator content="Hugo 0.122.0"><meta name=description content="learning materials for the data librarian course"><meta name=author content="Malte Bonart, Ania Lopez and Konrad Förstner"><link rel=icon href=/2023-2024-ZK_Data_Librarian_Modul_3/images/favicon.png type=image/png><title>Grundbegriffe der Statistik und Einführung in Pandas :: Zertifikatskurs Data Librarian - Modul 3 - Daten analysieren und darstellen</title>
-<link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/nucleus.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/fontawesome-all.min.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/hybrid.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/featherlight.min.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/perfect-scrollbar.min.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/auto-complete.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/atom-one-dark-reasonable.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/theme.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/hugo-theme.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/theme-green.css?1710754604 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/custom.css?1710754604 rel=stylesheet><script src=/2023-2024-ZK_Data_Librarian_Modul_3/js/jquery-3.3.1.min.js?1710754604></script><style>:root #header+#content>#left>#rlblock_left{display:none!important}</style></head><body data-url=/2023-2024-ZK_Data_Librarian_Modul_3/basics/><nav id=sidebar class=showVisitedLinks><div id=header-wrapper><div id=header><a id=logo href=https://zbmed.github.io/2023-2024-ZK_Data_Librarian_Modul_3/><h4 style=font-size:2.5rem;overflow-wrap:anywhere>Data Librarian</h3><h6 style=font-size:1rem;overflow-wrap:anywhere>Modul 3: Data analysieren und darstellen</h3></a></div><div class=searchbox><label for=search-by><i class="fas fa-search"></i></label>
+<link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/nucleus.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/fontawesome-all.min.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/hybrid.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/featherlight.min.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/perfect-scrollbar.min.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/auto-complete.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/atom-one-dark-reasonable.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/theme.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/hugo-theme.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/theme-green.css?1710773457 rel=stylesheet><link href=/2023-2024-ZK_Data_Librarian_Modul_3/css/custom.css?1710773457 rel=stylesheet><script src=/2023-2024-ZK_Data_Librarian_Modul_3/js/jquery-3.3.1.min.js?1710773457></script><style>:root #header+#content>#left>#rlblock_left{display:none!important}</style></head><body data-url=/2023-2024-ZK_Data_Librarian_Modul_3/basics/><nav id=sidebar class=showVisitedLinks><div id=header-wrapper><div id=header><a id=logo href=https://zbmed.github.io/2023-2024-ZK_Data_Librarian_Modul_3/><h4 style=font-size:2.5rem;overflow-wrap:anywhere>Data Librarian</h3><h6 style=font-size:1rem;overflow-wrap:anywhere>Modul 3: Data analysieren und darstellen</h3></a></div><div class=searchbox><label for=search-by><i class="fas fa-search"></i></label>
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-<span data-search-clear><i class="fas fa-times"></i></span></div><script type=text/javascript src=/2023-2024-ZK_Data_Librarian_Modul_3/js/lunr.min.js?1710754604></script><script type=text/javascript src=/2023-2024-ZK_Data_Librarian_Modul_3/js/auto-complete.js?1710754604></script><script type=text/javascript>var baseurl="https://zbmed.github.io/2023-2024-ZK_Data_Librarian_Modul_3/"</script><script type=text/javascript src=/2023-2024-ZK_Data_Librarian_Modul_3/js/search.js?1710754604></script></div><div class=highlightable><ul class=topics><li data-nav-id=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/ title="Kursorganisation und Vorbereitungen" class=dd-item><a href=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/><b>1. </b>Kursorganisation und Vorbereitungen
+<span data-search-clear><i class="fas fa-times"></i></span></div><script type=text/javascript src=/2023-2024-ZK_Data_Librarian_Modul_3/js/lunr.min.js?1710773457></script><script type=text/javascript src=/2023-2024-ZK_Data_Librarian_Modul_3/js/auto-complete.js?1710773457></script><script type=text/javascript>var baseurl="https://zbmed.github.io/2023-2024-ZK_Data_Librarian_Modul_3/"</script><script type=text/javascript src=/2023-2024-ZK_Data_Librarian_Modul_3/js/search.js?1710773457></script></div><div class=highlightable><ul class=topics><li data-nav-id=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/ title="Kursorganisation und Vorbereitungen" class=dd-item><a href=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/><b>1. </b>Kursorganisation und Vorbereitungen
 <i class="fas fa-check read-icon"></i></a><ul><li data-nav-id=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/modules/ title=Kursorganisation class=dd-item><a href=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/modules/>Kursorganisation
 <i class="fas fa-check read-icon"></i></a></li><li data-nav-id=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/schedule/ title="Termine und Kurseinheiten" class=dd-item><a href=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/schedule/>Termine und Kurseinheiten
 <i class="fas fa-check read-icon"></i></a></li><li data-nav-id=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/dataset/ title="Projektordner und Datensatz" class=dd-item><a href=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/dataset/>Projektordner und Datensatz
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 <i class="fas fa-check read-icon"></i></a></li></ul></li></ul><section id=shortcuts><h3>More</h3><ul><li><a class=padding href=https://zbmed.github.io/2023-2024-ZK_Data_Librarian_Modul_3/solutions/><i class='fas fa-cookie-bite'></i> Lösungen zu den Kursaufgaben</a></li><li><a class=padding href=https://zbmed.github.io/2023-2024-ZK_Data_Librarian_Modul_3/organisation/schedule/><i class='far fa-calendar-check'></i> Termine und Überblick</a></li><li><a class=padding href="https://zbiw.th-koeln.de/moodle/course/view.php?id=663&amp;section=3"><i class='fas fa-users'></i> Moodle Kursumgebung</a></li></ul></section><section id=prefooter><hr><ul><li><a class=padding href=# data-clear-history-toggle><i class="fas fa-history fa-fw"></i> Clear History</a></li></ul></section><section id=footer><p><a rel=license href=http://creativecommons.org/licenses/by/4.0/><img alt="Creative Commons License" style=border-width:0 src=https://i.creativecommons.org/l/by/4.0/80x15.png></a><br>This work is licensed under a <a rel=license href=http://creativecommons.org/licenses/by-sa/4.0/>Creative Commons Attribution 4.0 International License</a>. Author: <a href="mailto:malte@bonart.de?Subject=Data Librarian" target=_top>Malte Bonart</a> and <a href="mailto:foerstner@zbmed.de?Subject=Data Librarian" target=_top>Konrad Förstner</a>.</p></section></div></nav><section id=body><div id=overlay></div><div class="padding highlightable"><div><div id=top-bar><div id=breadcrumbs itemscope itemtype=http://data-vocabulary.org/Breadcrumb><span id=sidebar-toggle-span><a href=# id=sidebar-toggle data-sidebar-toggle><i class="fas fa-bars"></i>
 </a></span><span class=links><a href=/2023-2024-ZK_Data_Librarian_Modul_3/>Modul 3</a> > Grundbegriffe der Statistik und Einführung in Pandas</span></div></div></div><div id=head-tags></div><div id=chapter><div id=body-inner><h3 id=19022024--24022024>19.02.2024 – 24.02.2024</h3><h1 id=grundbegriffe-der-statistik-und-einführung-in-pandas>Grundbegriffe der Statistik und Einführung in Pandas</h1><p>Diese Einheit gibt in einem ersten Teil eine Einführung in die Aufgaben und grundlegenden Begriffe der angewandten Statistik. Im zweiten (mehr praktischen) Teil wird das <code>pandas</code> Paket vorgestellt und gezeigt, wie Datensätze eingelesen und bearbeitet werden können. Manche Lektionen und Aufgaben sind als <em>Exkurs</em> markiert. Diese Aufgaben sind für Interessierte und dauern meist etwas länger oder sind schwieriger zu lösen.</p><p>Die Projektaufgabe fasst die in dieser Einheit gelernten Inhalte in Form einer konkreten Aufgabenstellung zusammen, wie sie in der Praxis vorkommen könnte. Nach Bearbeitung aller einzelnen Aufgaben dieser Einheit ist die Projektaufgabe einfach zu bearbeiten.</p><h2 id=ziele>Ziele</h2><ul><li>Kenntnisse des statistischen Grundvokabulars und Anwendung auf die Beschreibung eines Datensatzes</li><li>Ein- und Auslesen von Datensätzen als <code>DataFrame</code>s in Python</li><li>Filtern von <code>DataFrame</code>s nach Spalten oder Zeilen</li><li>Erstellung neuer Variablen<div class=customnotices><div class=notices_inner id=exercise><h3 id=projektaufgabe-grundlagen-der-datenanalyse-in-python>Projektaufgabe: Grundlagen der Datenanalyse in Python</h3><p>Die Pressestelle der San Francisco Public Library möchte einen Online-Artikel zum Kundenstamm der Bibliothek erstellen. Dazu hat sie Dir <a href=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/dataset/>einen Datensatz</a> geschickt, den Du auswerten sollst.</p><ol><li>Erstelle eine Beschreibung des Datensatzes unter Verwendung des <a href=/2023-2024-ZK_Data_Librarian_Modul_3/basics/basic_terms/>statistischen Grundvokabulars</a>.</li><li>Lies den Datensatz <a href=/2023-2024-ZK_Data_Librarian_Modul_3/basics/pandas/io>ein</a>.</li><li>Bereinige den Datensatz von <a href=/2023-2024-ZK_Data_Librarian_Modul_3/basics/pandas/na>fehlenden Werten</a> und berechne die <a href=/2023-2024-ZK_Data_Librarian_Modul_3/basics/pandas/columns/#fallstudie-feature-engineering>neue Variable</a> <code>Membership Duration</code>.</li></ol><p>Die bearbeitete Projektaufgabe kannst Du in Deinem Git-Repositorium als Notebook bzw. Markdown-Datei speichern.</p></div></div></li></ul><footer class=footline></footer></div></div></div><div id=navigation><a class="nav nav-prev" href=/2023-2024-ZK_Data_Librarian_Modul_3/organisation/solutions/ title=Musterlösungen><i class="fa fa-chevron-left"></i></a>
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