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[問題] (救回) loop 中 cell 內細格等於變項

[ R_Language ]59 留言, 推噓總分: +7

作者: celestialgod - 發表於 2016/11/20 14:54(7年前)

53^F→gsuper: get() 好像不錯, 比邪惡的貼上短些01/19 22:50

[分享] 資料數據處理修改

[ R_Language ]7 留言, 推噓總分: +6

作者: celestialgod - 發表於 2015/07/12 15:22(8年前)

3^F→gsuper: fread() 愛用者+107/12 19:56

[問題] 找出重複的資料組

[ R_Language ]11 留言, 推噓總分: +2

作者: helixc - 發表於 2015/07/02 21:48(8年前)

9^F→gsuper: distinct 是 mysql 的語法與unique類似07/02 23:13

10^F→gsuper: which(d %in% duplicated(d)) 應該就差不多了07/02 23:14

11^F→gsuper: which(d %in% d[duplicated(d)])07/02 23:22

[問題] package無法成功安裝&範例無法執行

[ R_Language ]3 留言, 推噓總分: 0

作者: ntme - 發表於 2015/06/22 16:34(8年前)

2^F→gsuper: apple 我沒試過不過通常是有很多前置軟體要裝06/23 17:16

[討論] R function 中的三點引數 "..."

[ R_Language ]5 留言, 推噓總分: +1

作者: andrew43 - 發表於 2015/06/13 23:35(8年前)

5^F推gsuper: 這個好06/14 04:32

[問題] data.frame以row counts切割的問題

[ R_Language ]18 留言, 推噓總分: +5

作者: nelsonlibra - 發表於 2015/06/09 22:28(9年前)

7^F→gsuper: linux OS 還是 windows?06/10 10:18

8^F→gsuper: 檔案列數 <- system("wc -l 檔案",intern=TRUE)06/10 10:20

9^F→gsuper: LOOP <- ceiling(檔案列數 / 1000)06/10 10:20

10^F→gsuper: for(g in 1:LOOP)06/10 10:21

11^F→gsuper: {tmp<-read.table(檔案,skip=1000*(g-1),nrow=1000)}06/10 10:21

[問題] R 匯入xlsx

[ R_Language ]15 留言, 推噓總分: +2

作者: asdwezx25 - 發表於 2015/06/08 17:19(9年前)

14^F→gsuper: library(gdata); read.xls("123.xlsx")06/09 14:10

[分享] 2D scatter plot, 座標旋轉

[ R_Language ]9 留言, 推噓總分: +1

作者: gsuper - 發表於 2015/06/01 16:42(9年前)

7^F→gsuper: 行列式有點苦手06/01 17:57

[問題] 如何用for去存多個dataframe

[ R_Language ]10 留言, 推噓總分: +5

作者: gbd37 - 發表於 2015/05/25 03:45(9年前)

9^F→gsuper: y=list(NULL) ; a=1 ; for(i){for(j){ y[[a]] ; a=a+1}}05/25 13:40

Re: [討論] for loop與*apply function請益

[ R_Language ]29 留言, 推噓總分: 0

作者: gsuper - 發表於 2015/05/22 14:33(9年前)

2^F→gsuper: 有時候可以但容易出bug 所以我一像都會避開這種格式05/22 23:51

7^F→gsuper: as.numeric(as.matrix(factor)) 我都是這樣宣告的05/22 23:55

8^F→gsuper: 不用去管float, double, numeric, integer 等細節05/22 23:56

10^F→gsuper: 因為 read.table 會預設是dataframe05/22 23:56

11^F→gsuper: 然後dataframe$vector 好像大部分是預設 factor05/22 23:57

12^F→gsuper: 但是細節我也不清楚所以讀取檔案以後一定會這樣寫05/22 23:57

14^F→gsuper: gsub("^ *| *$","",as.matrix(read.table("檔案")))05/22 23:58

16^F→gsuper: 那我之後測試看看... factor的屬性我不是很熟05/22 23:59

19^F→gsuper: 不過我覺得原po 的問題主因可能還是餵 factor 給 sapply()05/23 00:03

20^F→gsuper: 因為這狀況我碰過很多次05/23 00:03

22^F→gsuper: 給他測試看看囉...原po試試 class(data$avg)05/23 00:04

23^F→gsuper: 告訴我們結果是什麼05/23 00:05

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