將數據幀行轉換爲新的數據幀列R

我有一個數據幀，cul7_expr，一行22列。我想創建一個新的數據框，其中包含一列，其中包含cul7_expr的所有數值，另一列包含所有列名（TCGA.BC ...）。新的數據框將有2列和22行。但是，當我嘗試取出cul7_expr的一行時，會彈出警告並且數據框爲空。將數據幀行轉換爲新的數據幀列R

樣本數據（cul7_expr）：

df <- structure(list(TCGA.BC.A10Q.11A=819.3685,TCGA.BC.A10Q.01A=2757.486, 
TCGA.DD.A1EB.11A=698.5818,TCGA.DD.A1EB.01A=1625.094,TCGA.DD.A1EG.11A=409.9332, 
TCGA.DD.A1EG.01A=2221.012,TCGA.DD.A1EH.11A=391.0916,TCGA.DD.A1EH.01A=2122.782, 
TCGA.DD.A1EI.11A=717.2073,TCGA.DD.A1EI.01A=768.7468,TCGA.DD.A3A6.11A=464.6395, 
TCGA.DD.A3A6.01A=1175.928,TCGA.DD.A3A8.11A=934.9738,TCGA.DD.A3A8.01A=931.8955, 
TCGA.ES.A2HT.11A=599.736,TCGA.ES.A2HT.01A=894.8324,TCGA.FV.A23B.11A=970.1805, 
TCGA.FV.A23B.01A=3018.075,TCGA.FV.A3I0.11A=337.222,TCGA.FV.A3I0.01A=3895.477, 
TCGA.FV.A3R2.11A=912.8499,TCGA.FV.A3R2.01A=2226.921), 
.Names=c("TCGA.BC.A10Q.11A","TCGA.BC.A10Q.01A","TCGA.DD.A1EB.11A", 
"TCGA.DD.A1EB.01A","TCGA.DD.A1EG.11A","TCGA.DD.A1EG.01A","TCGA.DD.A1EH.11A", 
"TCGA.DD.A1EH.01A","TCGA.DD.A1EI.11A","TCGA.DD.A1EI.01A","TCGA.DD.A3A6.11A", 
"TCGA.DD.A3A6.01A","TCGA.DD.A3A8.11A","TCGA.DD.A3A8.01A","TCGA.ES.A2HT.11A", 
"TCGA.ES.A2HT.01A","TCGA.FV.A23B.11A","TCGA.FV.A23B.01A","TCGA.FV.A3I0.11A", 
"TCGA.FV.A3I0.01A","TCGA.FV.A3R2.11A","TCGA.FV.A3R2.01A"),row.names = c(NA, -1L), 
class = c("data.table","data.frame"))

來源

2017-09-24 merryberry

你打算如何「排隊」？ – Elin

@Elin我試圖將cul7_expr的第1行（基本上是所有的數字）轉換成新的數據幀的列 – merryberry

那麼你如何轉換該行呢？向我們展示一些代碼。像這樣，很難弄清楚你的意思，我們不知道問題出在哪裏 –

嘗試熔融功能。爲了幫助未來，這被稱爲將數據從寬格式變爲長格式。

require(data.table) 
melt(df,measure.vars=1:22)

輸出：

  variable  value 
1: TCGA.BC.A10Q.11A 819.3685 
2: TCGA.BC.A10Q.01A 2757.4860 
3: TCGA.DD.A1EB.11A 698.5818 
4: TCGA.DD.A1EB.01A 1625.0940 
5: TCGA.DD.A1EG.11A 409.9332 
6: TCGA.DD.A1EG.01A 2221.0120 
7: TCGA.DD.A1EH.11A 391.0916 
8: TCGA.DD.A1EH.01A 2122.7820 
9: TCGA.DD.A1EI.11A 717.2073 
10: TCGA.DD.A1EI.01A 768.7468 
11: TCGA.DD.A3A6.11A 464.6395 
12: TCGA.DD.A3A6.01A 1175.9280 
13: TCGA.DD.A3A8.11A 934.9738 
14: TCGA.DD.A3A8.01A 931.8955 
15: TCGA.ES.A2HT.11A 599.7360 
16: TCGA.ES.A2HT.01A 894.8324 
17: TCGA.FV.A23B.11A 970.1805 
18: TCGA.FV.A23B.01A 3018.0750 
19: TCGA.FV.A3I0.11A 337.2220 
20: TCGA.FV.A3I0.01A 3895.4770 
21: TCGA.FV.A3R2.11A 912.8499 
22: TCGA.FV.A3R2.01A 2226.9210

來源

2017-09-24 17:58:49 www

熔體不是基本函數，所以你應該包括你正在討論的熔體的特定版本。 – Elin

@Elin - 謝謝你的提示。我添加了包參考。 – www

如果我知道你想什麼，你正確需要得到轉置，列名，然後由他們獲得的數據幀。

# set up data 
x <- data.frame(1, 2, 3, 4) 
names <- c("A", "B", "C", "D") 
colnames(x) <- names 

#convert 
names <- colnames(x) 
data.frame(t(x), names)

來源

2017-09-24 18:23:36 Elin

將數據幀行轉換爲新的數據幀列R

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