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作者 memphis 在 PTT [ Statistics ] 看板的留言(推文), 共44則
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3F推: 有多盲? 找的到原始paper嗎?06/30 18:31
1F推: 我記得R在這方面很弱 遠不及matlab 不知道是不是錯誤印象06/29 20:16
2F→: 如果有人有經驗的 能不能給點意見, 我還沒看過類似的討論06/29 20:17
3F→: 我在做 curve fitting 的時候遇到這議題, 弄得亂七八糟06/29 20:19
2F推:疑? 裡a 鍵鼠板07/07 00:39
1F推:round(k,2)==0.15 這樣如何?03/05 20:24
1F推:帶著愉快的心情體驗統計之美就好 ^^08/26 22:12
1F推:推03/28 16:24
3F推:不容易.. 我們這裡最後是抄 Rmath.h11/29 17:05
4F推:顆顆 囧\ 樓上07/23 14:52
13F推:要用which也可以 arr.ind 要開05/03 16:52
27F推:lala <- matrix(1:25, nrow=5)05/04 11:32
28F→:lala[which(lala==13, arr.ind=T)] <- 10005/04 11:33
30F→:要在矩陣裡用which, which輸出要改成 array index type05/04 11:35
31F→:不過如clickhere所說 多此一舉 用判斷產生的T/F矩陣就ok05/04 11:36
1F推:?matrix04/04 11:56