Assign A New Column To A Pandas DataFrame
Preliminaries
import pandas as pdCreate Dataframe
/* Create empty dataframe */
df = pd.DataFrame()
/* Create a column */
df['name'] = ['John', 'Steve', 'Sarah']
/* View dataframe */
df| name | |
|---|---|
| 0 | John |
| 1 | Steve |
| 2 | Sarah |
Assign New Column To Dataframe
/* Assign a new column to df called 'age' with a list of ages */
df.assign(age = [31, 32, 19])| name | age | |
|---|---|---|
| 0 | John | 31 |
| 1 | Steve | 32 |
| 2 | Sarah | 19 |
Python Example for Beginners
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There are two sides to machine learning:
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