[英]Calculating the frequency of each row in Pandas DataFrame
Suppose I have given datasets: 假设我已经给出了数据集:
Sr.No|Query
-----
1. a
2. a
3. b
4. b
5. a
I want the following result : 我想要以下结果:
Sr.No | Query | Frequency
1. a 3
2. a 3
3. b 2
4. b 2
5. a 3
Please note that the duplicates should not be removed. 请注意,不应删除重复项。
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