Answers for "how to use not operator in pandas"

4

not in pandas condition

import pandas as pd

a = ['2015-01-01' , '2015-02-01']

df = pd.DataFrame(data={'date':['2015-01-01' , '2015-02-01', '2015-03-01' , '2015-04-01', '2015-05-01' , '2015-06-01']})

print(df)
#         date
#0  2015-01-01
#1  2015-02-01
#2  2015-03-01
#3  2015-04-01
#4  2015-05-01
#5  2015-06-01

df = df[~df['date'].isin(a)]

print(df)
#         date
#2  2015-03-01
#3  2015-04-01
#4  2015-05-01
#5  2015-06-01
Posted by: Guest on July-14-2020
0

pandas and operator

# Loads dataset
df = pd.read_csv('dataset.csv')

# Filter data using & instead of and
filtered_df = df.loc[(df['column1'] == var1) & (df['column2'] == var2)]
Posted by: Guest on January-27-2021

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