Difference between map, applymap and apply methods in Pandas

Question

Can you tell me when to use these vectorization methods with basic examples?

I see that map is a Series method whereas the rest are

Answer 1

Quick Summary

• DataFrame.apply operates on entire rows or columns at a time.

• DataFrame.applymap, Series.apply, and Series.map operate on one element at time.

Series.apply and Series.map are similar and often interchangeable. Some of their slight differences are discussed in osa's answer below.