Apply Function to a DataFrame

pandas provides the apply() function to perform operations on entire columns of a Data Frame. Let’s see how we use it.

It’s very common to do some operations on existing columns and append these columns to the current DataFrame.

Use apply function

You can use apply() to send a function or lambda to a single column, which allows the user to pass a function and apply it to every single value of the pandas Series, then return the result.

Get hands-on with 1200+ tech skills courses.