{"id":3415,"date":"2017-05-19T07:59:02","date_gmt":"2017-05-19T06:59:02","guid":{"rendered":"https:\/\/abcdr.guyader.pro\/?p=3415"},"modified":"2018-04-08T00:02:55","modified_gmt":"2018-04-07T23:02:55","slug":"comment-selectionner-des-colonnes-qui-commencent-par-une-suite-de-caracteres-select-starts_with","status":"publish","type":"post","link":"https:\/\/thinkr.fr\/abcdr\/comment-selectionner-des-colonnes-qui-commencent-par-une-suite-de-caracteres-select-starts_with\/","title":{"rendered":"Comment s\u00e9lectionner des colonnes qui commencent par une suite de caract\u00e8res ? select( starts_with())"},"content":{"rendered":"<p>Vous avez besoin de <strong>s\u00e9lectionner des colonnes en fonction de leur nom<\/strong> ? Faites appel \u00e0 <em>select<\/em>, fonction du package <em>dplyr<\/em>. Vous trouvez laborieux de taper \u00e0 la main l&rsquo;ensemble des noms des colonnes que vous souhaitez ? Il y a un param\u00e8tre pour \u00e7a !<\/p>\n<p>Si vos noms de colonnes suivent un pattern d\u00e9fini, vous pouvez les s\u00e9lectionner avec <em>starts_with()<\/em>.<\/p>\n<pre><code>library(dplyr)\ndata(\"who\")\nselect(who, starts_with(\"newrel\"))<\/code><\/pre>\n<p>\u00c0 noter que vous pouvez \u00e9galement utiliser ends_with(), matches() ou encore contains().<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vous avez besoin de s\u00e9lectionner des colonnes en fonction de leur nom ? Faites appel \u00e0 select, fonction du package dplyr. Vous trouvez laborieux de taper \u00e0 la main l&rsquo;ensemble des noms des colonnes que vous souhaitez ? Il y a un param\u00e8tre pour \u00e7a ! Si vos noms de colonnes suivent un pattern d\u00e9fini, vous pouvez les s\u00e9lectionner avec starts_with(). library(dplyr) data(\u00ab\u00a0who\u00a0\u00bb) select(who, starts_with(\u00ab\u00a0newrel\u00a0\u00bb)) \u00c0 noter que vous pouvez \u00e9galement utiliser ends_with(), matches() ou encore contains().<a class=\"more-link\" href=\"https:\/\/thinkr.fr\/abcdr\/comment-selectionner-des-colonnes-qui-commencent-par-une-suite-de-caracteres-select-starts_with\/\">Read More &rarr;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":{"twitter_399453572_399453572":""},"rop_publish_now_history":[],"rop_publish_now_status":"pending","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[12,22],"tags":[],"class_list":{"0":"entry","1":"post","2":"publish","3":"author-colin","4":"post-3415","6":"format-standard","7":"category-manipulation-de-donnees","8":"category-tidyverse"},"acf":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p9O7Sx-T5","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/3415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/comments?post=3415"}],"version-history":[{"count":2,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/3415\/revisions"}],"predecessor-version":[{"id":4331,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/3415\/revisions\/4331"}],"wp:attachment":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/media?parent=3415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/categories?post=3415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/tags?post=3415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}