Fix: Remove extra "order_id" sum and make output clean for "Most Popular Item".

[IVDOT80]

Description

Problem:

The code for finding the most popular item used in the solution:

c = chipo.groupby('item_name')
c = c.sum()
c = c.sort_values(['quantity'], ascending=False)
c.head(1)

This caused problems:

• It added all columns, including 'order_id'. Even though the expected answer shows an 'order_id' column, it only displays the sum of order Ids, which has no real meaning.
• The result doesn't match the expected output in the solution.

Fixed:

The code now only uses 'item_name' and 'quantity' before grouping and summing:

c = chipo[['item_name','quantity']].groupby('item_name')
c = c.sum()
c = c.sort_values(['quantity'], ascending=False)
c.head(1)

[hannanhtang]

unsubscribe At 2025-11-02 20:56:54, "Mahdi-Mahmoudnazari" ***@***.***> wrote: Description Problem: The code for finding the most popular item used in the solution: c=chipo.groupby('item_name') c=c.sum() c=c.sort_values(['quantity'], ascending=False) c.head(1) image.png (view on web) This caused problems: It added all columns, including 'order_id'. Even though the expected answer shows an 'order_id' column, it only displays the sum of order Ids, which has no real meaning. The result doesn't match the expected output in the solution. Fixed: The code now only uses 'item_name' and 'quantity' before grouping and summing: c=chipo[['item_name','quantity']].groupby('item_name') c=c.sum() image.png (view on web) You can view, comment on, or merge this pull request online at: #183 Commit Summary 20ce83e Fixing 01> Chipotle> Step 9 d485cfd Fixing 01> Chipotle> Step 10 File Changes (1 file) M01_Getting_&_Knowing_Your_Data/Chipotle/Exercise_with_Solutions.ipynb (89) Patch Links: https://github.com/guipsamora/pandas_exercises/pull/183.patch https://github.com/guipsamora/pandas_exercises/pull/183.diff — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>