Pandas: Get topmost n records within each group of a DataFrame
61. Get Topmost n Records Within Each Group
Write a Pandas program to get topmost n records within each group of a DataFrame.
Sample Solution :
Python Code :
Sample Output:
Original DataFrame col1 col2 col3 0 1 4 7 1 2 5 5 2 3 6 8 3 4 9 12 4 7 5 1 5 11 0 11 topmost n records within each group of a DataFrame: col1 col2 col3 5 11 0 11 4 7 5 1 3 4 9 12 col1 col2 col3 3 4 9 12 2 3 6 8 1 2 5 5 4 7 5 1 col1 col2 col3 3 4 9 12 5 11 0 11 2 3 6 8
For more Practice: Solve these Related Problems:
- Write a Pandas program to group a DataFrame by a given column and then select the top n rows from each group based on another column.
- Write a Pandas program to use the groupby() and head() methods to extract the top n records for each group and then merge the results.
- Write a Pandas program to compute the top n highest values within each group and then output a multi-index DataFrame.
- Write a Pandas program to group by a categorical column, sort each group by a numeric column, and then select the first n records.
Go to:
Previous: Write a Pandas program to get last n records of a DataFrame.
Next: Write a Pandas program to remove first n rows of a given DataFrame.
Python-Pandas Code Editor:
Have another way to solve this solution? Contribute your code (and comments) through Disqus.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.