Pandas count show one column

# You can – optionally – remove the unnecessary columns and 
# keep the user_id column only:

article_read.groupby('source').count()[['user_id']]

# Change user_id as you see fit.

Source: data36.com

Similar codes

1 vote242 views1 answer
Create django group
Python Django
1 vote261 views1 answer
Get most repeated instance in a queryset django
Python Django
0 vote242 views1 answer
Python matplotlib plot thickness
Python
2 votes214 views1 answer
Datetime to int python
Python
0 vote225 views1 answer
Seaborn barplot remove error bars
Python
3 votes221 views1 answer
Flask give port number
Python
0 vote210 views2 answers
Change markersize in legend matplotlib
Python
0 vote219 views2 answers
How to run turtle in python
Python
-1 vote218 views2 answers
Django cleanup
Python
0 vote225 views1 answer
Matplotlib clear plot
Python