R est un langage it\u00e9ratif, c’est a dire que le logiciel va interpr\u00e9ter une ligne de code apr\u00e8s l’autre.
Pour gagner de la place, on peut vouloir \u00e9crire une s\u00e9rie d’op\u00e9rations sur une seule ligne. On perd en lisibilit\u00e9, mais pour les choses simples cela peut \u00eatre pratique.<\/p>\n
rm(list=ls(all=TRUE))
a<-5
b<-7<\/p># peut s'\u00e9crire sur une ligne grace au s\u00e9parateur ;
rm(list=ls(all=TRUE));a<-5;b<-7
<\/code><\/pre>\n
# pour les boucles for while ou les if, on peut compresser comme cela<\/p>\n
x<-10
for ( i in 1:10){
print(i)
x<-x*i
print(x)
print(\"coucou\")
}
\u00a0
# s'\u00e9crit en une ligne
x<-10;for ( i in 1:10){print(i);x<-x*i;print(x);print(\"coucou\")}
\u00a0
<\/code><\/pre>\n<\/p>\n","protected":false},"excerpt":{"rendered":"
R est un langage it\u00e9ratif, c’est a dire que le logiciel va interpr\u00e9ter une ligne de code apr\u00e8s l’autre.Pour gagner de la place, on peut vouloir \u00e9crire une s\u00e9rie d’op\u00e9rations sur une seule ligne. On perd en lisibilit\u00e9, mais pour les choses simples cela peut \u00eatre pratique. rm(list=ls(all=TRUE))a<-5b<-7# peut s’\u00e9crire sur une ligne grace au s\u00e9parateur ;rm(list=ls(all=TRUE));a<-5;b<-7 # pour les boucles for while ou les if, on peut compresser comme cela x<-10for ( i in 1:10){print(i)x<-x*iprint(x)print(\u00ab\u00a0coucou\u00a0\u00bb)}\u00a0# s’\u00e9crit en une lignex<-10;for ( i in 1:10){print(i);x<-x*i;print(x);print(\u00ab\u00a0coucou\u00a0\u00bb)} \u00a0Read More →<\/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":[4],"tags":[],"class_list":{"0":"entry","1":"post","2":"publish","3":"author-vincent","4":"post-798","6":"format-standard","7":"category-base-indispensable"},"acf":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p9O7Sx-cS","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/798","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=798"}],"version-history":[{"count":2,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/798\/revisions"}],"predecessor-version":[{"id":4142,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/posts\/798\/revisions\/4142"}],"wp:attachment":[{"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/media?parent=798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/categories?post=798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thinkr.fr\/abcdr\/wp-json\/wp\/v2\/tags?post=798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}