我想用一個稱為延遲時間的整數填充熊貓數據框。當我執行以下操作時，我也收到如下錯誤。train_df = pd.DataFrame("Train_Number", "Start_Station", "Stop_Station", "Delay_Time")
for i in range(1,25):
train_df = train_df.append(i, "Dublin", "Belfast", 0)錯誤：TypeError：不理解數據類型“Delay_Time”我曾嘗試將 0 更改為 int(0)、np.zeros()，但均無效。我究竟做錯了什么？
1 回答
長風秋雁
TA貢獻1757條經驗 獲得超7個贊
出于性能原因，首先創建元組列表，然后調用 DataFrame 構造函數：
L = []
for i in range(1,25):
L.append((i, "Dublin", "Belfast", 0))
或者使用列表理解：
L = [(i, "Dublin", "Belfast", 0) for i in range(1,25)]
cols = ["Train_Number", "Start_Station", "Stop_Station", "Delay_Time"]
train_df = pd.DataFrame(L, columns=cols)
print (train_df)
Train_Number Start_Station Stop_Station Delay_Time
0 1 Dublin Belfast 0
1 2 Dublin Belfast 0
2 3 Dublin Belfast 0
3 4 Dublin Belfast 0
4 5 Dublin Belfast 0
5 6 Dublin Belfast 0
6 7 Dublin Belfast 0
7 8 Dublin Belfast 0
8 9 Dublin Belfast 0
9 10 Dublin Belfast 0
10 11 Dublin Belfast 0
11 12 Dublin Belfast 0
12 13 Dublin Belfast 0
13 14 Dublin Belfast 0
14 15 Dublin Belfast 0
15 16 Dublin Belfast 0
16 17 Dublin Belfast 0
17 18 Dublin Belfast 0
18 19 Dublin Belfast 0
19 20 Dublin Belfast 0
20 21 Dublin Belfast 0
21 22 Dublin Belfast 0
22 23 Dublin Belfast 0
23 24 Dublin Belfast 0
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