Answers for "python check dataframe columns"

2

get columns based on dtype pandas

>>df.select_dtypes(include='object').columns

Index(['C', 'D'], dtype='object')
Posted by: Guest on March-16-2021
0

if in df.columns

import pandas as pd

numbers = {'set_of_numbers': [1,2,3,4,5,6,7,8,9,10]}
df = pd.DataFrame(numbers,columns=['set_of_numbers'])

df['equal_or_lower_than_4?'] = df['set_of_numbers'].apply(lambda x: 'True' if x <= 4 else 'False')

print (df)
Posted by: Guest on January-18-2021

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