What are iterators in Pandas?

What are iterators in Pandas?

Iterators in Pandas allow you to iterate over data structures like DataFrames and Series efficiently.

Can you give me an example of using an iterator with a DataFrame?

Sure! You can use the iterrows() method to iterate over rows in a DataFrame. For example:

import pandas as pd

data = {'A': [1, 2], 'B': [3, 4]}
df = pd.DataFrame(data)

for index, row in df.iterrows():
    print(index, row['A'], row['B'])

Are there other iterator methods in Pandas?

Yes, besides iterrows(), you can use itertuples() for faster iteration and items() to iterate over columns.

When should I use iterators instead of vectorized operations?

Use iterators for complex operations that can't be vectorized, but prefer vectorized operations for performance.