{"id":3409,"date":"2023-07-17T15:46:13","date_gmt":"2023-07-17T15:46:13","guid":{"rendered":"https:\/\/statorials.org\/nl\/ggplot-verandert-x-aslabels\/"},"modified":"2023-07-17T15:46:13","modified_gmt":"2023-07-17T15:46:13","slug":"ggplot-verandert-x-aslabels","status":"publish","type":"post","link":"https:\/\/statorials.org\/nl\/ggplot-verandert-x-aslabels\/","title":{"rendered":"Hoe x-aslabels in ggplot2 te veranderen"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">U kunt de functie <strong>scale_x_discrete()<\/strong> gebruiken om de x-aslabels op een plot in ggplot2 te wijzigen:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>p + scale_x_discrete(labels=c(' <span style=\"color: #ff0000;\">label1<\/span> ', ' <span style=\"color: #ff0000;\">label2<\/span> ', ' <span style=\"color: #ff0000;\">label3<\/span> ', ...))\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Het volgende voorbeeld laat zien hoe u deze syntaxis in de praktijk kunt gebruiken.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Voorbeeld: Wijzig de labels van de X-as in ggplot2<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Stel dat we het volgende gegevensframe in R hebben dat de punten weergeeft die door verschillende basketbalteams zijn gescoord:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create data frame\n<span style=\"color: #000000;\">df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (team=c('Mavs', 'Heat', 'Nets', 'Lakers'),\n                 dots=c(100, 122, 104, 109))\n\n#view data frame\ndf\n\n    team points\n1 Mavs 100\n2 Heat 122\n3 Nets 104\n4 Lakers 109\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Als we een staafdiagram maken om de door elk team gescoorde punten te visualiseren, maakt ggplot2 automatisch labels om op de x-as te plaatsen:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">library<\/span> (ggplot2)\n\n<span style=\"color: #008080;\">#create bar plot\n<\/span>ggplot(df, aes(x=team, y=points)) +\n  geom_col()<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-28590 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/barre1.jpg\" alt=\"\" width=\"458\" height=\"375\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Om de labels van de X-as in iets anders te veranderen, kunnen we de functie <strong>scale_x_discrete()<\/strong> gebruiken:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">library<\/span> (ggplot2)\n\n<span style=\"color: #008080;\">#create bar plot with specific axis order\n<\/span>ggplot(df, aes(x=team, y=points)) +\n  geom_col() +\n  scale_x_discrete(labels=c(' <span style=\"color: #ff0000;\">label1<\/span> ', ' <span style=\"color: #ff0000;\">label2<\/span> ', ' <span style=\"color: #ff0000;\">label3<\/span> ', ' <span style=\"color: #ff0000;\">label4<\/span> '))\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-28591\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/barre2.jpg\" alt=\"ggplot2 verandert x-aslabels\" width=\"463\" height=\"376\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">De labels op de X-as komen nu overeen met de labels die we hebben opgegeven met de functie <strong>scale_x_discrete()<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">U kunt de labels ook in een vector buiten de functie <strong>scale_discrete()<\/strong> opgeven als u dat wilt:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">library<\/span> (ggplot2)\n\n<span style=\"color: #008080;\">#specify labels for plot<\/span>\nmy_labels &lt;- c(' <span style=\"color: #ff0000;\">label1<\/span> ', ' <span style=\"color: #ff0000;\">label2<\/span> ', ' <span style=\"color: #ff0000;\">label3<\/span> ', ' <span style=\"color: #ff0000;\">label4<\/span> ')\n\n<span style=\"color: #008080;\">#create bar plot with specific axis order\n<\/span>ggplot(df, aes(x=team, y=points)) +\n  geom_col() +\n  scale_x_discrete(labels=my_labels)<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-28591 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/barre2.jpg\" alt=\"\" width=\"463\" height=\"376\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Dit past bij het vorige plot.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Aanvullende bronnen<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">In de volgende tutorials wordt uitgelegd hoe u andere veelvoorkomende taken in ggplot2 kunt uitvoeren:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/nl\/roteer-aslabels-ggplot2\/\" target=\"_blank\" rel=\"noopener\">Hoe aslabels te roteren in ggplot2<\/a><br \/> <a href=\"https:\/\/statorials.org\/nl\/ggplot-as-springt\/\" target=\"_blank\" rel=\"noopener\">Hoe aseinden in ggplot2 in te stellen<\/a><br \/> <a href=\"https:\/\/statorials.org\/nl\/stel-ggplot2-aslimieten-in\/\" target=\"_blank\" rel=\"noopener\">Hoe aslimieten in ggplot2 in te stellen<\/a><br \/> <a href=\"https:\/\/statorials.org\/nl\/ggplot-legendalabels\/\" target=\"_blank\" rel=\"noopener\">Hoe legendalabels in ggplot2 te veranderen<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>U kunt de functie scale_x_discrete() gebruiken om de x-aslabels op een plot in ggplot2 te wijzigen: p + scale_x_discrete(labels=c(&#8218; label1 &#8218;, &#8218; label2 &#8218;, &#8218; label3 &#8218;, &#8230;)) Het volgende voorbeeld laat zien hoe u deze syntaxis in de praktijk kunt gebruiken. Voorbeeld: Wijzig de labels van de X-as in ggplot2 Stel dat we het [&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":[],"class_list":["post-3409","post","type-post","status-publish","format-standard","hentry","category-gids"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hoe X-aslabels te veranderen in ggplot2 \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"In deze tutorial wordt aan de hand van een voorbeeld uitgelegd hoe u de x-aslabels op een plot in ggplot2 kunt wijzigen.\" \/>\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\/nl\/ggplot-verandert-x-aslabels\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hoe X-aslabels te veranderen in ggplot2 \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"In deze tutorial wordt aan de hand van een voorbeeld uitgelegd hoe u de x-aslabels op een plot in ggplot2 kunt wijzigen.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/nl\/ggplot-verandert-x-aslabels\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-17T15:46:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/barre1.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\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/nl\/ggplot-verandert-x-aslabels\/\",\"url\":\"https:\/\/statorials.org\/nl\/ggplot-verandert-x-aslabels\/\",\"name\":\"Hoe X-aslabels te veranderen in ggplot2 \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/nl\/#website\"},\"datePublished\":\"2023-07-17T15:46:13+00:00\",\"dateModified\":\"2023-07-17T15:46:13+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/d4b8842173cca1bb62cdec41860e4219\"},\"description\":\"In deze tutorial wordt aan de hand van een voorbeeld uitgelegd hoe u de x-aslabels op een plot in ggplot2 kunt wijzigen.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/nl\/ggplot-verandert-x-aslabels\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/nl\/ggplot-verandert-x-aslabels\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/nl\/ggplot-verandert-x-aslabels\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Thuis\",\"item\":\"https:\/\/statorials.org\/nl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hoe x-aslabels in ggplot2 te veranderen\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/nl\/#website\",\"url\":\"https:\/\/statorials.org\/nl\/\",\"name\":\"Statorials\",\"description\":\"Uw gids voor statistische competentie\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/nl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"de\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/d4b8842173cca1bb62cdec41860e4219\",\"name\":\"Dr.benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/statorials.org\/nl\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"http:\/\/statorials.org\/nl\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr.benjamin anderson\"},\"description\":\"Ik ben Benjamin, een gepensioneerde hoogleraar statistiek die nu een toegewijde Statorials-lesgever is. 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