{"id":3003,"date":"2015-02-20T19:57:54","date_gmt":"2015-02-20T18:57:54","guid":{"rendered":"https:\/\/abcdr.guyader.pro\/?p=3003"},"modified":"2018-04-08T00:01:21","modified_gmt":"2018-04-07T23:01:21","slug":"rajouter-ou-modifier-une-colonne-dun-jeu-de-donnees-mutate","status":"publish","type":"post","link":"https:\/\/thinkr.fr\/abcdr\/rajouter-ou-modifier-une-colonne-dun-jeu-de-donnees-mutate\/","title":{"rendered":"Rajouter ou modifier une colonne d&#039;un jeu de donn\u00e9es : mutate"},"content":{"rendered":"<p>La fonction <strong>mutate<\/strong> est plus rapide et plus pratique que la fonction <strong>transform<\/strong>. Elle permet en une seule instruction de cr\u00e9er plusieurs colonnes.<\/p>\n<pre><code><br \/>require(plyr)<br \/>data(iris)<br \/> \u00a0mutate(iris,colA=Sepal.Length * Sepal.Width ,colB=colA*3) <br \/> <br \/><br \/><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>La fonction mutate est plus rapide et plus pratique que la fonction transform. Elle permet en une seule instruction de cr\u00e9er plusieurs colonnes. require(plyr)data(iris) \u00a0mutate(iris,colA=Sepal.Length * Sepal.Width ,colB=colA*3)<a class=\"more-link\" href=\"https:\/\/thinkr.fr\/abcdr\/rajouter-ou-modifier-une-colonne-dun-jeu-de-donnees-mutate\/\">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],"tags":[],"class_list":{"0":"entry","1":"post","2":"publish","3":"author-vincent","4":"post-3003","6":"format-standard","7":"category-manipulation-de-donnees"},"acf":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p9O7Sx-Mr","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/3003","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=3003"}],"version-history":[{"count":2,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/3003\/revisions"}],"predecessor-version":[{"id":4249,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/3003\/revisions\/4249"}],"wp:attachment":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/media?parent=3003"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/categories?post=3003"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/tags?post=3003"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}