Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “Next, we applied the fit_transform() method to replace missing data in the train set and the transform() method to replace missing data in the test set.”

A block of code is set as follows:

X_train = pd.DataFrame(
    X_train,
    columns=numeric_vars + remaining_vars,
)

Any command-line input or output is written as follows:

pip install feature-engine

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: “Click on crx.data to download the data.”

Tips or Important notes

Appear like this.