Answers for "addition of columns in dataframe"

7

python how to add columns to a pandas dataframe

# Basic syntax:
pandas_dataframe['new_column_name'] = ['list', 'of', 'column', 'values']

# Note, the list of column values must have length equal to the number
# 	of rows in the pandas dataframe you are adding it to.

# Add column in which all rows will be value:
pandas_dataframe['new_column_name'] = value
# Where value can be a string, an int, a float, and etc
Posted by: Guest on October-04-2020
0

new column with addition of other columns

df['C'] = df.apply(lambda row: row['A'] + row['B'], axis=1)
Posted by: Guest on September-11-2021

Python Answers by Framework

Browse Popular Code Answers by Language