{"id":4789,"date":"2025-04-09T21:06:28","date_gmt":"2025-04-09T19:06:28","guid":{"rendered":"https:\/\/www.psyctc.org\/psyctc\/?post_type=docs&#038;p=4789"},"modified":"2025-04-10T08:14:08","modified_gmt":"2025-04-10T06:14:08","password":"","slug":"octiles","status":"publish","type":"docs","link":"https:\/\/www.psyctc.org\/psyctc\/glossary2\/octiles\/","title":{"rendered":"Octile(s)"},"content":{"rendered":"\n<p>I confess this is me throwing one in for completeness, I don&#8217;t think I&#8217;ve ever seen it used in any report or paper I&#8217;ve ever read.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Details<\/h4>\n\n\n\n<p>The quantiles that divide a distribution into eight equal sized value ranges so in percentile terminology:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>0% to &lt;12.5%<\/li>\n\n\n\n<li>12.5% to &lt;25%<\/li>\n\n\n\n<li>25% to &lt;37.5%<\/li>\n\n\n\n<li>37.5% to &lt;50%<\/li>\n\n\n\n<li>50% to &lt;67.5%<\/li>\n\n\n\n<li>67.5% to &lt;75%<\/li>\n\n\n\n<li>75% to 100% <\/li>\n<\/ul>\n\n\n\n<p>[Slightly dodgy use of the &#8220;&lt;&#8221; to purists but I think what I mean is clear!]<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Try also<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.psyctc.org\/psyctc\/glossary2\/five-number-summary\/\" title=\"\">Five number summary<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.psyctc.org\/psyctc\/glossary2\/distribution\/\" title=\"\">Distribution<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.psyctc.org\/psyctc\/glossary2\/seven-point-summaries\/\" title=\"\">Seven number summaries<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.psyctc.org\/psyctc\/glossary2\/percentiles\/\" title=\"\">Percentiles<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.psyctc.org\/psyctc\/glossary2\/quantiles\/\" title=\"\">Quantiles<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.psyctc.org\/psyctc\/glossary2\/quartiles\/\" title=\"\">Quartiles<\/a><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Chapters<\/h4>\n\n\n\n<p>Not covered in the OMbook.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Online resources<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>One of my <a href=\"https:\/\/shiny.psyctc.org\" target=\"_blank\" rel=\"noopener\" title=\"\">shiny apps<\/a>: <a href=\"https:\/\/shiny.psyctc.org\/apps\/ECDFplot\/\" target=\"_blank\" rel=\"noopener\" title=\"\">ECDF plot with quantiles and CIs for quantiles<\/a> is pertinent in the unlikely event that you ever want to get the octiles for your data with their confidence intervals!<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Dates<\/h4>\n\n\n\n<p>First created 9.iv.25, links expanded 10.iv.25.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I confess this is me throwing one in for completeness, I don&#8217;t think I&#8217;ve ever seen it used in any report or paper I&#8217;ve ever read. Details The quantiles that divide a distribution into eight equal sized value ranges so in percentile terminology: [Slightly dodgy use of the &#8220;&lt;&#8221; to purists but I think what &hellip; <a href=\"https:\/\/www.psyctc.org\/psyctc\/glossary2\/octiles\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Octile(s)<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[],"glossaries":[],"doc_tag":[],"knowledge_base":[],"class_list":["post-4789","docs","type-docs","status-publish","hentry"],"year_month":"2026-04","word_count":133,"total_views":"264","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"chris","author_nicename":"chris","author_url":"https:\/\/www.psyctc.org\/psyctc\/author\/chris\/"},"doc_category_info":[],"doc_tag_info":[],"knowledge_base_info":[],"knowledge_base_slug":[],"_links":{"self":[{"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/docs\/4789","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/comments?post=4789"}],"version-history":[{"count":3,"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/docs\/4789\/revisions"}],"predecessor-version":[{"id":4798,"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/docs\/4789\/revisions\/4798"}],"wp:attachment":[{"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/media?parent=4789"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/doc_category?post=4789"},{"taxonomy":"glossaries","embeddable":true,"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/glossaries?post=4789"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/doc_tag?post=4789"},{"taxonomy":"knowledge_base","embeddable":true,"href":"https:\/\/www.psyctc.org\/psyctc\/wp-json\/wp\/v2\/knowledge_base?post=4789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}