Answers for "python dataframe add column name"

3

pandas add column names

# Basic syntax:
your_dataframe.columns = ['new', 'column', 'names']

# Google "python change row or column names in pandas dataframe" for
# longer answer with examples
Posted by: Guest on May-12-2021
31

how to add a column to a pandas df

#using the insert function:
df.insert(location, column_name, list_of_values) 
#example
df.insert(0, 'new_column', ['a','b','c'])
#explanation:
#put "new_column" as first column of the dataframe
#and puts 'a','b' and 'c' as values

#using array-like access:
df['new_column_name'] = value

#df stands for dataframe
Posted by: Guest on March-18-2020
6

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

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