{"id":15134,"date":"2020-03-08T02:45:54","date_gmt":"2020-03-08T01:45:54","guid":{"rendered":"https:\/\/www.datanovia.com\/en\/?p=15134"},"modified":"2020-03-08T02:49:00","modified_gmt":"2020-03-08T01:49:00","slug":"how-to-create-stacked-bar-plots-with-error-bars-and-p-values","status":"publish","type":"post","link":"https:\/\/www.datanovia.com\/en\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/","title":{"rendered":"How to Create Stacked Bar Plots with Error Bars and P-values"},"content":{"rendered":"<div class=\"rdoc\">\n<pre class=\"r\"><code># 1. Load required R packages\r\nsuppressPackageStartupMessages(library(ggpubr))\r\nsuppressPackageStartupMessages(library(rstatix))\r\n\r\n# 2. Data preparation\r\ndf &lt;- ToothGrowth\r\ndf$dose &lt;- factor(df$dose)\r\n\r\n# 3. Statistical tests\r\nres.stats &lt;- df %&gt;%\r\n  group_by(dose) %&gt;%\r\n  t_test(len ~ supp) %&gt;%\r\n  adjust_pvalue() %&gt;%\r\n  add_significance()\r\nres.stats<\/code><\/pre>\n<pre><code>## # A tibble: 3 x 11\r\n##   dose  .y.   group1 group2    n1    n2 statistic    df       p   p.adj p.adj.signif\r\n##   &lt;fct&gt; &lt;chr&gt; &lt;chr&gt;  &lt;chr&gt;  &lt;int&gt; &lt;int&gt;     &lt;dbl&gt; &lt;dbl&gt;   &lt;dbl&gt;   &lt;dbl&gt; &lt;chr&gt;       \r\n## 1 0.5   len   OJ     VC        10    10    3.17    15.0 0.00636 0.0127  *           \r\n## 2 1     len   OJ     VC        10    10    4.03    15.4 0.00104 0.00312 **          \r\n## 3 2     len   OJ     VC        10    10   -0.0461  14.0 0.964   0.964   ns<\/code><\/pre>\n<pre class=\"r\"><code># 4. Create a stacked bar plot, add \"mean_se\" error bars\r\np &lt;- ggbarplot(\r\n  df, x = \"dose\", y = \"len\", add = \"mean_se\",\r\n   color = \"supp\", palette = \"jco\"\r\n  )\r\n\r\n# 5. Add p-values to the bar plot using ggpubr verbs\r\np + stat_pvalue_manual(\r\n  res.stats, x = \"dose\", y.position = c(30, 45, 60),\r\n  label = \"p.adj.signif\"\r\n)<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/joqsSNl.png\" alt=\"plot of chunk stacked-barplot-with-error-bars-and-p-values\" \/><\/p>\n<pre class=\"r\"><code># or use ggplot2 verbs\r\np + geom_text(\r\n  aes(x = dose, y = c(25, 42, 60), label = p.adj.signif),\r\n  data = res.stats\r\n)<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/fz4k6XB.png\" alt=\"plot of chunk stacked-barplot-with-error-bars-and-p-values\" \/><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p># 1. Load required R packages suppressPackageStartupMessages(library(ggpubr)) suppressPackageStartupMessages(library(rstatix)) # 2. Data preparation df &lt;- ToothGrowth df$dose &lt;- factor(df$dose) # 3. Statistical tests res.stats &lt;- df %&gt;% group_by(dose) %&gt;% t_test(len ~ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7948,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rating_form_position":"","rating_results_position":"","mr_structured_data_type":"","footnotes":""},"categories":[341],"tags":[343],"class_list":["post-15134","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","tag-ggpubr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Create Stacked Bar Plots with Error Bars and P-values - 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\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Create Stacked Bar Plots with Error Bars and P-values - Datanovia\" \/>\n<meta property=\"og:description\" content=\"# 1. Load required R packages suppressPackageStartupMessages(library(ggpubr)) suppressPackageStartupMessages(library(rstatix)) # 2. Data preparation df &lt;- ToothGrowth df$dose &lt;- factor(df$dose) # 3. Statistical tests res.stats &lt;- df %&gt;% group_by(dose) %&gt;% t_test(len ~ [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.datanovia.com\/en\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/\" \/>\n<meta property=\"og:site_name\" content=\"Datanovia\" \/>\n<meta property=\"article:published_time\" content=\"2020-03-08T01:45:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-03-08T01:49:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/2018\/10\/2013-12-27_15.25.18.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"512\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alboukadel\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alboukadel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.datanovia.com\/en\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.datanovia.com\/en\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/\"},\"author\":{\"name\":\"Alboukadel\",\"@id\":\"https:\/\/www.datanovia.com\/en\/#\/schema\/person\/7767cf2bd5c91a1610c6eb53a0ff069e\"},\"headline\":\"How to Create Stacked Bar Plots with Error Bars and P-values\",\"datePublished\":\"2020-03-08T01:45:54+00:00\",\"dateModified\":\"2020-03-08T01:49:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.datanovia.com\/en\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/\"},\"wordCount\":11,\"commentCount\":1,\"publisher\":{\"@id\":\"https:\/\/www.datanovia.com\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.datanovia.com\/en\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/2018\/10\/2013-12-27_15.25.18.jpg\",\"keywords\":[\"ggpubr\"],\"articleSection\":[\"FAQ\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.datanovia.com\/en\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.datanovia.com\/en\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/\",\"url\":\"https:\/\/www.datanovia.com\/en\/blog\/how-to-create-stacked-bar-plots-with-error-bars-and-p-values\/\",\"name\":\"How to Create Stacked Bar Plots with Error Bars and P-values - 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