Most wanted pandas functions (Part 02) - Qiita

Here, I'm going to extend the last article I have written some time ago. You guys can read it in here Most wanted pandas functions (Part 01) 1. Applying a function. When dealing with the data, we often have to use functions. There are few ways to use a function over a DataFrame. We should avoid iterating approaches since it is slow going through the panda's rows. We can use .apply() in this case.