{"id":2910,"date":"2013-10-23T12:04:36","date_gmt":"2013-10-23T11:04:36","guid":{"rendered":"https:\/\/abcdr.guyader.pro\/?p=2910"},"modified":"2018-04-08T00:01:06","modified_gmt":"2018-04-07T23:01:06","slug":"comment-supprimer-des-niveaux-dun-facteur","status":"publish","type":"post","link":"https:\/\/thinkr.fr\/abcdr\/comment-supprimer-des-niveaux-dun-facteur\/","title":{"rendered":"Comment supprimer des niveaux d&#039;un facteur ?"},"content":{"rendered":"<p>Regarder ce code :<\/p>\n<p><\/p>\n<pre><code><br \/>ff &lt;- factor(c('AA', 'BA', 'CA'))<br \/>ff<br \/>#[1] AA BA CA<br \/>#Levels: AA BA CA<br \/>ff[1:2]<br \/>#[1] AA BA<br \/>#Levels: AA BA CA <br \/><\/code><\/pre>\n<p>dans le code <strong> ff[1:2]<\/strong> on garde en memoire le niveau <strong>CA<\/strong>, parfois cela ne correspond pas a ce que l&rsquo;on veut.<\/p>\n<p>une solution est d&rsquo;utiliser cette ligne de code :<\/p>\n<pre><code><br \/> ff[1:2, drop=TRUE] <br \/>#ou encore<br \/> factor(ff[1:2]) <br \/><br \/><\/code><\/pre>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Regarder ce code : ff &lt;- factor(c(&lsquo;AA&rsquo;, &lsquo;BA&rsquo;, &lsquo;CA&rsquo;))ff#[1] AA BA CA#Levels: AA BA CAff[1:2]#[1] AA BA#Levels: AA BA CA dans le code ff[1:2] on garde en memoire le niveau CA, parfois cela ne correspond pas a ce que l&rsquo;on veut. une solution est d&rsquo;utiliser cette ligne de code : ff[1:2, drop=TRUE] #ou encore factor(ff[1:2])<a class=\"more-link\" href=\"https:\/\/thinkr.fr\/abcdr\/comment-supprimer-des-niveaux-dun-facteur\/\">Read More &rarr;<\/a><\/p>\n","protected":false},"author":2,"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":[12,23],"tags":[],"class_list":{"0":"entry","1":"post","2":"publish","3":"author-vincent","4":"post-2910","6":"format-standard","7":"category-manipulation-de-donnees","8":"category-transformation-de-donnees"},"acf":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p9O7Sx-KW","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/2910","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/comments?post=2910"}],"version-history":[{"count":2,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/2910\/revisions"}],"predecessor-version":[{"id":4234,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/2910\/revisions\/4234"}],"wp:attachment":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/media?parent=2910"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/categories?post=2910"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/tags?post=2910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}