Breaking News: Grepper is joining You.com. Read the official announcement!

create new column pandas

YOU.com answered on June 20, 2022 Popularity 9/10 Helpfulness 4/10

answer create new column pandas

create new column pandas

Comment

import pandas as pd

# Assuming we have a dataframe named 'df' and we want to create a new column 'new_column'

# Method 1: Assigning a value to all rows in the new column
df['new_column'] = 'some value'

# Method 2: Assigning values using calculations based on other columns
df['new_column'] = df['column1'] + df['column2']

# Method 3: Assigning values using conditions
df['new_column'] = df['column'].apply(lambda x: 'yes' if x > 0 else 'no')

# Method 4: Assigning values using a function
def some_function(row):
    # perform some calculations
    return result

df['new_column'] = df.apply(some_function, axis=1)

Popularity 9/10 Helpfulness 4/10 Language python

Source: Grepper

Link to this answer
Share Copy Link

Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

Closely Related Answers

new column dataframe pandas

Comments(1)

# Import pandas package
import pandas as pd
  
# Define a dictionary containing Students data
data = {'Name': ['Jai', 'Princi', 'Gaurav', 'Anuj'],
        'Height': [5.1, 6.2, 5.1, 5.2],
        'Qualification': ['Msc', 'MA', 'Msc', 'Msc']}
  
# Convert the dictionary into DataFrame
df = pd.DataFrame(data)
  
# Declare a list that is to be converted into a column
address = ['Delhi', 'Bangalore', 'Chennai', 'Patna']
  
# Using 'Address' as the column name
# and equating it to the list
df['Address'] = address
  
# Observe the result
print(df)

Popularity 9/10 Helpfulness 2/10 Language python

Source: www.geeksforgeeks.org

Tags: dataframe data

Link to this answer
Share Copy Link

Contributed on Mar 05 2023

Anjali S Nair

0 Answers Avg Quality 2/10

new column dataframe pandas

Comment

air_quality["london_mg_per_cubic"] = air_quality["station_london"] * 1.882

In [5]: air_quality.head()
Out[5]: 
                     station_antwerp  ...  london_mg_per_cubic
datetime                              ...                     
2019-05-07 02:00:00              NaN  ...               43.286
2019-05-07 03:00:00             50.5  ...               35.758
2019-05-07 04:00:00             45.0  ...               35.758
2019-05-07 05:00:00              NaN  ...               30.112
2019-05-07 06:00:00              NaN  ...                  NaN

[5 rows x 4 columns]

Popularity 9/10 Helpfulness 2/10 Language python

Source: pandas.pydata.org

Tags: dataframe data

Link to this answer
Share Copy Link

Contributed on Mar 05 2023

Anjali S Nair

0 Answers Avg Quality 2/10

Add new column of dataframe

Comment

Other['Extracurr'] = count

Popularity 10/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: add

Link to this answer
Share Copy Link

Contributed on Jun 20 2022

Chunxiao Wang

0 Answers Avg Quality 2/10

create new column pandas

Contents

More Related Answers

create new column pandas

Closely Related Answers

new column dataframe pandas

new column dataframe pandas

Add new column of dataframe

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.