/Python/Panda - subset based on column value

Panda - subset based on column value

Pandas filter rows by value

# does year equals to 2002?
# is_2002 is a boolean variable with True or False in it
>is_2002 =  gapminder['year']==2002
>print(is_2002.head())
0    False
1    False
2    False
3    False
4    False
# filter rows for year 2002 using  the boolean variable
>gapminder_2002 = gapminder[is_2002]
>print(gapminder_2002.shape)
(142, 6)

Source: cmdlinetips.com

Panda - subset based on column value

import pandas as pd
import numpy as np
df = pd.DataFrame({'A': 'foo bar foo bar foo bar foo foo'.split(),
                   'B': 'one one two three two two one three'.split(),
                   'C': np.arange(8), 'D': np.arange(8) * 2})
print(df)
sub_df = df.loc[df['A'] == 'foo'] # Subset based on specific A value

Source: stackoverflow.com

Similar codes

0 vote315 views1 answer
How to leave a function python
Python
1 vote315 views1 answer
Numpy find rows containing nan
Python
0 vote348 views1 answer
Python webbrowser close tab
Python
6 votes336 views2 answers
Python square a number
Python
0 vote263 views1 answer
Keyboard input raspberry pi
Python
2 votes317 views3 answers
How to make a python program on odd and even
Python
2 votes322 views1 answer
Distribution seaborn
Python
6 votes297 views1 answer
How to simulate a key press in python
Python
0 vote468 views2 answers
From django.core.management import execute_from_command_line ImportError: No module named django.core.management
Python Django
27 votes427 views2 answers
Easy sending email python
Python