/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

3 votes209 views2 answers
Multiple variable input in python
Python
8 votes219 views6 answers
Declare variable in python
Python
0 vote214 views2 answers
Wsl python image
Python
8 votes204 views1 answer
Pygame draw rect syntax
Python
-1 vote203 views1 answer
Python mean ndarray
Python
0 vote216 views1 answer
List adding to the begining python
Python
0 vote215 views1 answer
Transformer un dictionnaire en liste python
Python
0 vote232 views1 answer
Os.chdir go back
Python
1 vote211 views1 answer
Installing more modules in pypy
Python
0 vote210 views1 answer
Features and image recongnition
Python