中的R數據幀的新列我有以下dataframe-稱它爲創建基於現有列和一組參數
S.No Action Taken
1 Advance Booking
2 Before Launch
3 After Launch
4 Re Launch
5 Customer care management
我也有以下數據幀 - 呼叫過b
Sl No Action Name
1 Machine Re Launch
2 New Machine Re Launch
3 New Machine Relaunch
4 New Device Launch
5 New Device After Launch
6 Customer Care Management'
7 Machine After Launch
8 New Machine After Launch
9 New Machine Relaunch
10 New Device After Launch
如何創建數據集B中的列如下 -
Sl No Action Name Action Type
1 Machine Re Launch Re Launch
2 New Machine Re Launch Re Launch
3 New Machine Relaunch Re Launch
4 New Device Launch Launch
5 New Device After Launch After Launch
6 Customer Care Management' Customer Care Management
7 Machine After Launch After Launch
8 New Machine After Launch After Launch
9 New Machine Relaunch After Launch
10 New Device After Launch After Launch
我如何做到這一點。這與在Excel中查找類似。
負責修剪「動作名稱」的算法是什麼?你有什麼嘗試?考慮發佈一個[可重現的例子](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example)。 –
操作名稱是作爲數據字典的一部分提供的 - 我沒有通過任何代碼推導出它。我試過了Strsplit,但是它的結果是有限的,因爲在某些情況下,字典中的關鍵字來自字符串之間。它看起來像查找,但我到目前爲止只能找到數字示例。因此我的查詢 –