{"id":2923,"date":"2023-07-20T01:55:54","date_gmt":"2023-07-20T01:55:54","guid":{"rendered":"https:\/\/statorials.org\/de\/pandas-groupby-bar-plot\/"},"modified":"2023-07-20T01:55:54","modified_gmt":"2023-07-20T01:55:54","slug":"pandas-groupby-bar-plot","status":"publish","type":"post","link":"https:\/\/statorials.org\/de\/pandas-groupby-bar-plot\/","title":{"rendered":"Pandas: so erstellen sie ein balkendiagramm aus groupby"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Sie k\u00f6nnen die folgende Syntax verwenden, um ein Balkendiagramm aus einer GroupBy-Funktion in Pandas zu erstellen:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#calculate sum of values by group<\/span>\ndf_groups = df. <span style=\"color: #3366ff;\">groupby<\/span> ([' <span style=\"color: #ff0000;\">group_var<\/span> '])[' <span style=\"color: #ff0000;\">values_var<\/span> ']. <span style=\"color: #3366ff;\">sum<\/span> ()\n\n<span style=\"color: #008080;\">#create bar plot by group<\/span>\ndf_groups. <span style=\"color: #3366ff;\">plot<\/span> (kind=' <span style=\"color: #ff0000;\">bar<\/span> ')<\/strong>\n<\/pre>\n<p> <span style=\"color: #000000;\">Das folgende Beispiel zeigt, wie diese Syntax in der Praxis verwendet wird.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Beispiel: Erstellen Sie ein Balkendiagramm aus GroupBy in Pandas<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Angenommen, wir haben den folgenden Pandas-DataFrame, der die von Basketballspielern verschiedener Teams erzielten Punkte anzeigt:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#createDataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'A', 'A', 'A', 'A',\n                            'B', 'B', 'B', 'B', 'B',\n                            'C', 'C', 'C', 'C', 'C'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [12, 29, 34, 14, 10, 11, 7, 36,\n                              34, 22, 41, 40, 45, 36, 38]})\n\n<span style=\"color: #008080;\">#view first five rows of DataFrame\n<\/span>df. <span style=\"color: #3366ff;\">head<\/span> ()\n\n\tteam points\n0 to 12\n1 to 29\n2 to 34\n3 to 14\n4 to 10<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Wir k\u00f6nnen die folgende Syntax verwenden, um die Summe der von jedem Team erzielten Punkte zu berechnen und ein Balkendiagramm zu erstellen, um die Summe jedes Teams zu visualisieren:<\/span><\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt<\/span>\n\n#calculate sum of points for each team\n<span style=\"color: #000000;\">df. <span style=\"color: #3366ff;\">groupby<\/span> (' <span style=\"color: #ff0000;\">team<\/span> ')[' <span style=\"color: #ff0000;\">points<\/span> ']. <span style=\"color: #3366ff;\">sum<\/span> ()\n\n<\/span>#create bar plot by group\n<span style=\"color: #000000;\">df_groups. <span style=\"color: #3366ff;\">plot<\/span> (kind=' <span style=\"color: #ff0000;\">bar<\/span> ')\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-25431 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/groupby_bar1.jpg\" alt=\"\" width=\"387\" height=\"264\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Die x-Achse zeigt den Namen jedes Teams und die y-Achse zeigt die Summe der von jedem Team erzielten Punkte.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Wir k\u00f6nnen auch den folgenden Code verwenden, um die Handlung etwas besser zu machen:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #008080;\"><strong><span style=\"font-size: 15px; color: #008000;\">import<\/span> <span style=\"font-size: 15px; color: #000000;\">matplotlib.<\/span> <span style=\"font-size: 15px; color: #3366ff;\">pyplot<\/span> <span style=\"font-size: 15px; color: #008000;\">as<\/span> <span style=\"font-size: 15px; color: #000000;\">plt\n\n<\/span><span style=\"font-size: 15px; color: #008080;\">#calculate sum of points for each team\n<\/span><span style=\"font-size: 15px; color: #000000;\">df_groups = df.<\/span> <span style=\"font-size: 15px; color: #3366ff;\">groupby<\/span> <span style=\"font-size: 15px; color: #000000;\">(['<\/span> <span style=\"font-size: 15px; color: #ff0000;\">team<\/span> <span style=\"font-size: 15px; color: #000000;\">'])['<\/span> <span style=\"font-size: 15px; color: #ff0000;\">points<\/span> <span style=\"font-size: 15px; color: #000000;\">'].<\/span> <span style=\"font-size: 15px; color: #3366ff;\">sum<\/span> <span style=\"font-size: 15px; color: #000000;\">()\n\n<\/span><span style=\"font-size: 15px; color: #008080;\">#create bar plot with custom<\/span> <span style=\"color: #008080;\"><span style=\"font-size: 15px;\">aesthetics<\/span><\/span>\n<span style=\"font-size: 15px; color: #000000;\">df_groups.<\/span> <span style=\"font-size: 15px; color: #3366ff;\">plot<\/span> <span style=\"font-size: 15px; color: #000000;\">(kind='<\/span> <span style=\"font-size: 15px; color: #ff0000;\">bar<\/span> <span style=\"font-size: 15px; color: #000000;\">', title='<\/span> <span style=\"font-size: 15px; color: #ff0000;\">Total Points by Team<\/span> <span style=\"font-size: 15px; color: #000000;\">',\n               ylabel='<\/span> <span style=\"font-size: 15px; color: #ff0000;\">Total Points<\/span> ' <span style=\"font-size: 15px; color: #008000;\">,<\/span> <span style=\"font-size: 15px; color: #000000;\">xlabel='<\/span> <span style=\"font-size: 15px; color: #ff0000;\">Team<\/span> <span style=\"font-size: 15px; color: #000000;\">', figsize=(<\/span> <span style=\"font-size: 15px; color: #008000;\">10,6<\/span> <span style=\"font-size: 15px; color: #000000;\">)<\/span> <span style=\"font-size: 15px; color: #000000;\">)<\/span><span style=\"font-size: 15px; color: #000000;\">\n\n<\/span><span style=\"font-size: 15px; color: #008080;\">#rotate x-axis ticks vertically\n<\/span><span style=\"font-size: 15px; color: #000000;\">plt.<\/span> <span style=\"font-size: 15px; color: #3366ff;\">xticks<\/span> <span style=\"font-size: 15px; color: #000000;\">(rotation=<\/span> <span style=\"font-size: 15px; color: #008000;\">0<\/span> <span style=\"font-size: 15px; color: #000000;\">)<\/span><\/strong><b>\n<\/b><\/span><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-25432\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/groupby_bar2.jpg\" alt=\"Gruppe Pandas pro Balkenparzelle\" width=\"605\" height=\"375\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Hinweis<\/strong> : Die vollst\u00e4ndige Dokumentation zur <strong>GroupBy-<\/strong> Funktion finden Sie <a href=\"https:\/\/pandas.pydata.org\/docs\/reference\/api\/pandas.DataFrame.groupby.html\" target=\"_blank\" rel=\"noopener\">hier<\/a> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Zus\u00e4tzliche Ressourcen<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">In den folgenden Tutorials wird erl\u00e4utert, wie andere g\u00e4ngige Vorg\u00e4nge in Pandas ausgef\u00fchrt werden:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/de\/pandas-groupby-count-unique\/\" target=\"_blank\" rel=\"noopener\">Pandas: So z\u00e4hlen Sie eindeutige Werte nach Gruppen<\/a><br \/> <a href=\"https:\/\/statorials.org\/de\/pandas-groupby-modus\/\" target=\"_blank\" rel=\"noopener\">Pandas: So berechnen Sie den Modus nach Gruppe<\/a><br \/> <a href=\"https:\/\/statorials.org\/de\/pandas-groupby-korrelation\/\" target=\"_blank\" rel=\"noopener\">Pandas: So berechnen Sie die Korrelation nach Gruppen<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sie k\u00f6nnen die folgende Syntax verwenden, um ein Balkendiagramm aus einer GroupBy-Funktion in Pandas zu erstellen: #calculate sum of values by group df_groups = df. groupby ([&#8218; group_var &#8218;])[&#8218; values_var &#8218;]. sum () #create bar plot by group df_groups. plot (kind=&#8216; bar &#8218;) Das folgende Beispiel zeigt, wie diese Syntax in der Praxis verwendet wird. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pandas: So erstellen Sie ein Balkendiagramm aus GroupBy \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"In diesem Tutorial wird anhand eines Beispiels erl\u00e4utert, wie Sie aus einer Pandas-GroupBy-Funktion ein Balkendiagramm erstellen.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/de\/pandas-groupby-bar-plot\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pandas: So erstellen Sie ein Balkendiagramm aus GroupBy \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"In diesem Tutorial wird anhand eines Beispiels erl\u00e4utert, wie Sie aus einer Pandas-GroupBy-Funktion ein Balkendiagramm erstellen.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/de\/pandas-groupby-bar-plot\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-20T01:55:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/groupby_bar1.jpg\" \/>\n<meta name=\"author\" content=\"Dr. Benjamin Anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. Benjamin Anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/de\/pandas-groupby-bar-plot\/\",\"url\":\"https:\/\/statorials.org\/de\/pandas-groupby-bar-plot\/\",\"name\":\"Pandas: So erstellen Sie ein Balkendiagramm aus GroupBy \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/de\/#website\"},\"datePublished\":\"2023-07-20T01:55:54+00:00\",\"dateModified\":\"2023-07-20T01:55:54+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/de\/#\/schema\/person\/ec75c4d6365f2708f8a0ad3a42121aa0\"},\"description\":\"In diesem Tutorial wird anhand eines Beispiels erl\u00e4utert, wie Sie aus einer Pandas-GroupBy-Funktion ein Balkendiagramm erstellen.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/de\/pandas-groupby-bar-plot\/#breadcrumb\"},\"inLanguage\":\"de-DE\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/de\/pandas-groupby-bar-plot\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/de\/pandas-groupby-bar-plot\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Heim\",\"item\":\"https:\/\/statorials.org\/de\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pandas: so erstellen sie ein balkendiagramm aus groupby\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/de\/#website\",\"url\":\"https:\/\/statorials.org\/de\/\",\"name\":\"Statorials\",\"description\":\"Ihr Leitfaden f\u00fcr statistische Kompetenz !\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/de\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"de-DE\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/de\/#\/schema\/person\/ec75c4d6365f2708f8a0ad3a42121aa0\",\"name\":\"Dr. Benjamin Anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de-DE\",\"@id\":\"https:\/\/statorials.org\/de\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/de\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/de\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. Benjamin Anderson\"},\"description\":\"Hallo, ich bin Benjamin, ein pensionierter Statistikprofessor, der sich zum engagierten Statorials-Lehrer entwickelt hat. 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