{"id":3099,"date":"2023-07-19T05:42:35","date_gmt":"2023-07-19T05:42:35","guid":{"rendered":"https:\/\/statorials.org\/nl\/r-fout-stripchart-standaard-ongeldige-plotmethode\/"},"modified":"2023-07-19T05:42:35","modified_gmt":"2023-07-19T05:42:35","slug":"r-fout-stripchart-standaard-ongeldige-plotmethode","status":"publish","type":"post","link":"https:\/\/statorials.org\/nl\/r-fout-stripchart-standaard-ongeldige-plotmethode\/","title":{"rendered":"Oplossing: fout in stripchart.default(x1, \u2026): ongeldige plotmethode"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Een fout die je tegen kunt komen in R is:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>Error in stripchart.default(x1, ...): invalid plotting method \n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Deze fout treedt meestal op wanneer u probeert een spreidingsdiagram te maken met behulp van een dataframe in plaats van een vector.<\/span><\/p>\n<p> <span style=\"color: #000000;\">In deze tutorial wordt precies uitgelegd hoe u deze fout kunt oplossen.<\/span><\/p>\n<h3> <strong>Hoe de fout te reproduceren<\/strong><\/h3>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Stel dat we het volgende dataframe in R hebben:<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#create data frame\n<span style=\"color: #000000;\">df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (x=c(1, 2, 2, 4, 7, 8, 9),\n                 y=c(5, 5, 8, 10, 13, 13, 18))<\/span>\n\n#view data frame\n<span style=\"color: #000000;\">df\n\n  xy\n1 1 5\n2 2 5\n3 2 8\n4 4 10\n5 7 13\n6 8 13\n7 9 18<\/span><\/span><\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Stel nu dat we de volgende syntaxis proberen te gebruiken om een spreidingsdiagram te maken:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#attempt to create scatter plot\n<span style=\"color: #000000;\">plot(df[1], df[2])\n\nError in stripchart.default(x1, ...): invalid plotting method\n<\/span><\/span><\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">We krijgen een foutmelding omdat <strong>df[1]<\/strong> en <strong>df[2]<\/strong> feitelijk dataframes zijn en de functie <strong>plot()<\/strong> alleen vectoren als invoer accepteert.<\/span><\/p>\n<p> <span style=\"color: #000000;\">We kunnen de functie <strong>class()<\/strong> gebruiken om te controleren of <strong>df[1]<\/strong> en <strong>df[2]<\/strong> beide dataframes zijn:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#display class of df[1] and df[2]\n<span style=\"color: #000000;\">class(df[1]);class(df[2])<\/span>\n\n<span style=\"color: #000000;\">[1] \"data.frame\"\n[1] \"data.frame\"\n<\/span><\/span><\/strong><\/span><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Hoe u de fout kunt oplossen<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">De manier om deze fout op te lossen is door ervoor te zorgen dat we vectoren gebruiken als invoer voor de functie <strong>plot()<\/strong> .<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">We kunnen bijvoorbeeld de volgende syntaxis gebruiken om een spreidingsdiagram te maken:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#create scatterplot\n<span style=\"color: #000000;\">plot(df[, 1], df[, 2])\n<\/span><\/span><\/strong><\/span><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-26452 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/graphique1-1.jpg\" alt=\"\" width=\"454\" height=\"406\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Of we kunnen de volgende syntaxis gebruiken om een spreidingsdiagram te maken:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#create scatterplot\n<span style=\"color: #000000;\">plot(df$x, df$y)<\/span>\n<\/span><\/strong><\/span><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-26453 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/graphique2-1.jpg\" alt=\"\" width=\"461\" height=\"425\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Merk op dat we met beide methoden zonder fouten een spreidingsdiagram kunnen maken, omdat we elke keer vectoren als invoer voor de functie <strong>plot()<\/strong> hebben gebruikt.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Aanvullende bronnen<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">In de volgende tutorials wordt uitgelegd hoe u andere veelvoorkomende fouten in R kunt oplossen:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/nl\/rbind-fout-in-r-namen-komen-niet-overeen-met-eerdere-namen\/\" target=\"_blank\" rel=\"noopener\">Oplossing in R: namen komen niet overeen met eerdere namen<\/a><br \/> <a href=\"https:\/\/statorials.org\/nl\">Hoe op te lossen in R: de lengte van een langer object is geen veelvoud van de lengte van een korter object<\/a><br \/> <a href=\"https:\/\/statorials.org\/nl\/contrasten-toegepast-op-factoren-met-2-of-meer-niveaus\/\" target=\"_blank\" rel=\"noopener\">Hoe op te lossen in R: contrasten kunnen alleen worden toegepast op factoren met 2 of meer niveaus<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Een fout die je tegen kunt komen in R is: Error in stripchart.default(x1, &#8230;): invalid plotting method Deze fout treedt meestal op wanneer u probeert een spreidingsdiagram te maken met behulp van een dataframe in plaats van een vector. In deze tutorial wordt precies uitgelegd hoe u deze fout kunt oplossen. Hoe de fout te [&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-3099","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>Oplossing: Fout in stripchart.default(x1, ...): Ongeldige plotmethode - Statorials<\/title>\n<meta name=\"description\" content=\"In deze tutorial wordt uitgelegd hoe u de volgende fout in R kunt oplossen: Fout in stripchart.default(x1, ...): Ongeldige plotmethode.\" \/>\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\/r-fout-stripchart-standaard-ongeldige-plotmethode\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oplossing: Fout in stripchart.default(x1, ...): Ongeldige plotmethode - Statorials\" \/>\n<meta property=\"og:description\" content=\"In deze tutorial wordt uitgelegd hoe u de volgende fout in R kunt oplossen: Fout in stripchart.default(x1, ...): Ongeldige plotmethode.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/nl\/r-fout-stripchart-standaard-ongeldige-plotmethode\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-19T05:42:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/graphique1-1.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\/r-fout-stripchart-standaard-ongeldige-plotmethode\/\",\"url\":\"https:\/\/statorials.org\/nl\/r-fout-stripchart-standaard-ongeldige-plotmethode\/\",\"name\":\"Oplossing: Fout in stripchart.default(x1, ...): Ongeldige plotmethode - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/nl\/#website\"},\"datePublished\":\"2023-07-19T05:42:35+00:00\",\"dateModified\":\"2023-07-19T05:42:35+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/d4b8842173cca1bb62cdec41860e4219\"},\"description\":\"In deze tutorial wordt uitgelegd hoe u de volgende fout in R kunt oplossen: Fout in stripchart.default(x1, ...): Ongeldige plotmethode.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/nl\/r-fout-stripchart-standaard-ongeldige-plotmethode\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/nl\/r-fout-stripchart-standaard-ongeldige-plotmethode\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/nl\/r-fout-stripchart-standaard-ongeldige-plotmethode\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Thuis\",\"item\":\"https:\/\/statorials.org\/nl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Oplossing: fout in stripchart.default(x1, \u2026): ongeldige plotmethode\"}]},{\"@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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