{"id":16880,"date":"2020-06-09T20:54:33","date_gmt":"2020-06-09T19:54:33","guid":{"rendered":"https:\/\/www.datanovia.com\/en\/?p=16880"},"modified":"2020-06-09T20:54:33","modified_gmt":"2020-06-09T19:54:33","slug":"histogramme-ggplot-avec-courbe-de-densite-dans-r-en-utilisant-un-axe-y-secondaire","status":"publish","type":"post","link":"https:\/\/www.datanovia.com\/en\/fr\/blog\/histogramme-ggplot-avec-courbe-de-densite-dans-r-en-utilisant-un-axe-y-secondaire\/","title":{"rendered":"Histogramme GGPLOT avec Courbe de Densit\u00e9 dans R en Utilisant un Axe Y Secondaire"},"content":{"rendered":"<div id=\"rdoc\">\n<p>Dans cet article, vous apprendrez comment cr\u00e9er facilement un <strong>histogramme ggplot avec une courbe de densit\u00e9 dans R<\/strong> en utilisant un axe y secondaire. Nous utiliserons le package <code>gpubr<\/code> pour cr\u00e9er les graphiques et le package <code>cowplot<\/code> pour les aligner.<\/p>\n<p>Sommaire:<\/p>\n<div id=\"TOC\">\n<ul>\n<li><a href=\"#pr\u00e9requis\">Pr\u00e9requis<\/a><\/li>\n<li><a href=\"#pr\u00e9paration-des-donn\u00e9es\">Pr\u00e9paration des donn\u00e9es<\/a><\/li>\n<li><a href=\"#cr\u00e9er-un-histogramme-avec-une-distribution-de-densit\u00e9-sur-le-m\u00eame-axe-y\">Cr\u00e9er un histogramme avec une distribution de densit\u00e9 sur le m\u00eame axe y<\/a><\/li>\n<li><a href=\"#utilisation-dun-axe-y-secondaire-pour-la-distribution-de-la-densit\u00e9\">Utilisation d\u2019un axe y secondaire pour la distribution de la densit\u00e9<\/a><\/li>\n<li><a href=\"#conclusion\">Conclusion<\/a><\/li>\n<\/ul>\n<\/div>\n<div id=\"pr\u00e9requis\" class=\"section level2\">\n<h2>Pr\u00e9requis<\/h2>\n<p>Chargez les packages R requis:<\/p>\n<pre class=\"r\"><code>library(ggpubr)\r\nlibrary(cowplot)<\/code><\/pre>\n<\/div>\n<div id=\"pr\u00e9paration-des-donn\u00e9es\" class=\"section level2\">\n<h2>Pr\u00e9paration des donn\u00e9es<\/h2>\n<pre class=\"r\"><code>set.seed(1234)\r\nwdata = data.frame(\r\n  sex = factor(rep(c(\"F\", \"M\"), each=200)),\r\n  weight = c(rnorm(200, 55), rnorm(200, 58)))\r\nhead(wdata)<\/code><\/pre>\n<pre><code>##   sex weight\r\n## 1   F   53.8\r\n## 2   F   55.3\r\n## 3   F   56.1\r\n## 4   F   52.7\r\n## 5   F   55.4\r\n## 6   F   55.5<\/code><\/pre>\n<\/div>\n<div id=\"cr\u00e9er-un-histogramme-avec-une-distribution-de-densit\u00e9-sur-le-m\u00eame-axe-y\" class=\"section level2\">\n<h2>Cr\u00e9er un histogramme avec une distribution de densit\u00e9 sur le m\u00eame axe y<\/h2>\n<pre class=\"r\"><code># Histogramme de base sans la courbe de densit\u00e9\r\ngghistogram(\r\n  wdata, x = \"weight\", \r\n  add = \"mean\", rug = TRUE,\r\n  fill = \"sex\", palette = c(\"#00AFBB\", \"#E7B800\")\r\n  )<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/r-tutorial\/figures\/ggplot-histogram-with-density-curve-in-r-plot-with-one-y-axis-1.png\" width=\"480\" \/><\/p>\n<pre class=\"r\"><code># Ajouter la courbe de densit\u00e9 sur le m\u00eame axe\r\ngghistogram(\r\n  wdata, x = \"weight\", y = \"..density..\",\r\n  add = \"mean\", rug = TRUE,\r\n  fill = \"sex\", palette = c(\"#00AFBB\", \"#E7B800\"),\r\n  add_density = TRUE\r\n  )<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/r-tutorial\/figures\/ggplot-histogram-with-density-curve-in-r-plot-with-one-y-axis-2.png\" width=\"480\" \/><\/p>\n<\/div>\n<div id=\"utilisation-dun-axe-y-secondaire-pour-la-distribution-de-la-densit\u00e9\" class=\"section level2\">\n<h2>Utilisation d\u2019un axe y secondaire pour la distribution de la densit\u00e9<\/h2>\n<pre class=\"r\"><code># 1. Cr\u00e9er le graphique de l'histogramme\r\nphist &lt;- gghistogram(\r\n  wdata, x = \"weight\", \r\n  add = \"mean\", rug = TRUE,\r\n  fill = \"sex\", palette = c(\"#00AFBB\", \"#E7B800\")\r\n)\r\n\r\n# 2. Cr\u00e9er le graphique de densit\u00e9 avec l'axe des y \u00e0 droite\r\n# Supprimer les \u00e9l\u00e9ments de l'axe des x\r\npdensity &lt;- ggdensity(\r\n  wdata, x = \"weight\", \r\n  color= \"sex\", palette = c(\"#00AFBB\", \"#E7B800\"),\r\n  alpha = 0\r\n) +\r\n  scale_y_continuous(expand = expansion(mult = c(0, 0.05)), position = \"right\")  +\r\n  theme_half_open(11, rel_small = 1) +\r\n  rremove(\"x.axis\")+\r\n  rremove(\"xlab\") +\r\n  rremove(\"x.text\") +\r\n  rremove(\"x.ticks\") +\r\n  rremove(\"legend\")\r\n\r\n# 3. Aligner les deux graphiques et les superposer.\r\naligned_plots &lt;- align_plots(phist, pdensity, align=\"hv\", axis=\"tblr\")\r\nggdraw(aligned_plots[[1]]) + draw_plot(aligned_plots[[2]])<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/r-tutorial\/figures\/ggplot-histogram-with-density-curve-in-r-using-secondary-y-axis-1.png\" width=\"480\" \/><\/p>\n<\/div>\n<div id=\"conclusion\" class=\"section level2\">\n<h2>Conclusion<\/h2>\n<p>Cet article d\u00e9crit comment cr\u00e9er un histogramme ggplot avec une courbe de densit\u00e9 dans R en utilisant un axe y secondaire<\/p>\n<\/div>\n<\/div>\n<p><!--end rdoc--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans cet article, vous apprendrez comment cr\u00e9er facilement un histogramme ggplot avec une courbe de densit\u00e9 dans R en utilisant un axe y secondaire. Nous utiliserons le package gpubr pour [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16877,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rating_form_position":"","rating_results_position":"","mr_structured_data_type":"","footnotes":""},"categories":[342,279],"tags":[350],"class_list":["post-16880","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq-fr","category-ggplot2-fr","tag-ggpubr-fr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Histogramme GGPLOT avec Courbe de Densit\u00e9 dans R en Utilisant un Axe Y Secondaire - Datanovia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.datanovia.com\/en\/fr\/blog\/histogramme-ggplot-avec-courbe-de-densite-dans-r-en-utilisant-un-axe-y-secondaire\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Histogramme GGPLOT avec Courbe de Densit\u00e9 dans R en Utilisant un Axe Y Secondaire - Datanovia\" \/>\n<meta property=\"og:description\" content=\"Dans cet article, vous apprendrez comment cr\u00e9er facilement un histogramme ggplot avec une courbe de densit\u00e9 dans R en utilisant un axe y secondaire. 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