看板 R_Language 關於我們 聯絡資訊
更新一下自己的問題,我想要在ggplot上按照y值總合大小排序我的x類別,以下code #Data hp=read.csv(textConnection( "class,year,amount a,99,100 a,100,200 a,101,150 b,100,50 b,101,100 c,102,70 c,102,80 c,103,90 c,104,50 d,102,90")) hp$year=as.factor(hp$year) #Plotting p=ggplot(data=hp) p+geom_bar(binwidth=0.5,stat="identity")+ # aes(x=reorder(class,amount),y=amount,label=amount,fill=year)+theme() #↑這邊新加入reorder試圖將amount依照class重排 結果:http://imgur.com/DYsMqwl #↑發現c,b,d有按照sum(amount)降冪排列,但是a沒有 想請問各位版友有無解決辦法呢?懇請賜教 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 163.14.191.172 ※ 文章網址: https://www.ptt.cc/bbs/R_Language/M.1433384118.A.446.html
celestialgod: 你沒有照我跑啊... 06/04 10:19
celestialgod: 在hp$year那一行下面用這行: levels(hp$class) = hp 06/04 10:20
celestialgod: $class[order(tapply(hp$amount, hp$class, sum), d 06/04 10:20
celestialgod: ecreasing = FALSE)] 06/04 10:20