作者查詢 / kenshin528
作者 kenshin528 在 PTT [ Statistics ] 看板的留言(推文), 共252則
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3F推: 很久沒寫SAS了但是看起來可以用RETAIN補齊03/07 01:06
1F推: 我也是用下面這種方式02/18 11:06
14F推: 目前聽到比較多都是是自己從系統幹到分析12/30 09:25
5F推: 但是抽樣調查在實務上最吃的東西是預算 …理論分配只10/17 16:47
2F推: 在read.csv加上 stringsAsFactors = FALSE10/10 20:48
3F→: 可以問一下你n年的原始資料格式長什麼樣子嗎?10/10 20:48
5F推: dt[dt$year<2000,] 如果你年份是用數職型的變項適用10/12 00:00
6F→: 我推錯了XD10/12 00:00
7F→: dt[dt$year<2010,] 如果你年份是用數職型的變項適用10/12 00:01
3F推: r. sas 太貴沒幾家買的起10/02 12:13
1F推:哈哈...我今天也是想到用亂數抽樣的方法XDDD11/07 00:39
2F→:用更原始的方法 給每個數字一組亂數用rank排序取前三11/07 00:39
3F→:理論上是會出現所有的組合才對11/07 00:40
20F推:存活分析最常用是在生物領域阿 生存機率會隨時間減少10/17 00:09
1F推:已回信10/19 23:41
2F推:SPSS 可以直接讀取EXCEL黨吧?07/28 15:41