When Should I Use Pandas

The apply() function is used to apply a function along an axis of the DataFrame. Objects passed to the function are Series objects whose index is either the DataFrame’s index (axis=0) or the DataFrame’s columns (axis=1).

When should you avoid pandas?

I also made a Jupyter notebook with the whole lesson, both parts included. First, let’s make some fake data to play with. I’ll make a large DataFrame to illustrate larger processing problems and a small DataFrame to illustrate point changes in a localized way. Great, now we’re all set up!

Is pandas apply efficient?

Pandas is one of the most commonly used data analysis and manipulation libraries in data science ecosystem. It offers plenty of functions and methods to perform efficient operations. … However, as the size of data increases, time becomes an issue. Let’s create a sample dataframe with 100k rows.