Convert Boolean To String In Pandas Dataframe - Coding

Pandas, a powerful data manipulation library in Python, offers multiple ways to convert boolean values to strings within a DataFrame. In this article, we will see how to convert boolean to String in Pandas DataFrame in Python.

Python Convert Boolean To String In Pandas Dataframe

Below are some examples by which we can convert Boolean to String in Pandas DataFrame in Python:

Using astype() Method
Using apply Function with Lambda
Using map() Function
Using replace() Method

Boolean to String in Pandas Dataframe Using `astype` Method

In this example, we leverage the astype method to directly convert boolean values in a DataFrame column to strings. The astype method is a straightforward and concise approach, making it ideal for a quick conversion.

Python3

import pandas as pd
 
# Sample DataFrame
data = {'column_name': [True, False, True, False]}
df = pd.DataFrame(data)
 
print('Before :', df.dtypes)
 
# Convert boolean to string using astype
df['column_name'] = df['column_name'].astype(str)
 
print(df)
 
print('After :', df.dtypes)

Output:

Before : column_name    bool
dtype: object
  column_name
0        True
1       False
2        True
3       False
After : column_name    object
dtype: object

Convert Boolean to String Using `apply` Function with Lambda

In this example, we utilize the apply() function with a lambda expression to convert boolean values to strings. This approach offers flexibility and allows for more complex transformations if needed.

Python3

import pandas as pd
 
# Sample DataFrame
data = {'column_name': [True, False, True, False]}
df = pd.DataFrame(data)
 
print('Before :',df.dtypes)
 
# Convert boolean to string using apply and lambda
df['column_name'] = df['column_name'].apply(lambda x: str(x))
 
# Display the DataFrame
print(df)
 
print('After :',df.dtypes)

Output:

Before : column_name    bool
dtype: object
  column_name
0        True
1       False
2        True
3       False
After : column_name    object
dtype: object

Boolean to String in Pandas Dataframe Using `map()` Function

In this example, the map() function is employed along with a predefined dictionary to map boolean values to their corresponding strings. This approach is useful when a custom mapping is required.

Python3

import pandas as pd
 
# Sample DataFrame
data = {'column_name': [True, False, True, False]}
df = pd.DataFrame(data)
 
print('Before :',df.dtypes)
# Create a mapping dictionary for boolean to string
bool_to_str_mapping = {True: 'True', False: 'False'}
 
# Map boolean to string using map function
df['column_name'] = df['column_name'].map(bool_to_str_mapping)
 
# Display the DataFrame
print(df)
 
print('After :',df.dtypes)

Output:

Before : column_name    bool
dtype: object
  column_name
0        True
1       False
2        True
3       False
After : column_name    object
dtype: object

Boolean to String in Pandas Dataframe Using `replace()` Method

In this example, we leverage the replace() method to substitute boolean values with their corresponding strings. The replace method is versatile and can be extended for more complex replacements.

Python3

import pandas as pd
 
# Sample DataFrame
data = {'column_name': [True, False, True, False]}
df = pd.DataFrame(data)
 
print('Before :', df.dtypes)
 
# Replace boolean values with strings using the replace method
df['column_name'] = df['column_name'].replace({True: 'True', False: 'False'})
 
# Display the DataFrame
print(df)
 
print('After :', df.dtypes)

Output:

Before : column_name    bool
dtype: object
  column_name
0        True
1       False
2        True
3       False
After : column_name    object
dtype: object

Reffered: https://www.geeksforgeeks.org

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Category:	Coding
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