Pandas - replacing column values

Question

I know there are a number of topics on this question, but none of the methods worked for me so I\'m posting about my specific situation

I have a dataframe that looks

Answer 1

Can try this too!
Create a dictionary of replacement values.

import pandas as pd
data = pd.DataFrame([[1,0],[0,1],[1,0],[0,1]], columns=["sex", "split"])

replace_dict= {0:'Female',1:'Male'}
print(replace_dict)

Use the map function for replacing values

data['sex']=data['sex'].map(replace_dict)

Output after replacing