Summary  
This chapter explains how to select the top N rows of a tabular dataset based on one or multiple columns and how to control which duplicate entries are kept, using the Pandas `.nlargest()` method.

General domain of usage  
Automotive data analysis (e.g., finding the most expensive or newest cars)

Learn how to use the `.nlargest()` method in pandas to find the largest values in a DataFrame column. This video will walk you through practical examples, such as retrieving the top 10 newest cars sorted by both year and engine volume, and show you how to select the top 100 most expensive cars sorted by price and year. You will also see how to control duplicate handling with the `keep` argument. By the end, you will know how to use `.nlargest()` to quickly extract the highest values from your data for deeper analysis.

In the last chapter, you learned how to output the smallest values; you can definitely do the same with the largest ones. To do so, you will use a very similar method with the same argument as the previous one: `.nlargest()`. Look at the example of how to output the 10 newest cars, also sorted by `'Engine_volume'` - all duplicates included:

```python
data.nlargest(10, ['Year', 'Engine_volume'], keep = 'all')
```

Choose the CORRECT way to get the top 100 the most expensive cars sorted, firstly by `'Price'` and then by `'Year'`, returning exactly 100 rows.

This course contains a lot of useful functions for a future data analyst. You will learn different ways of extracting data and even set conditions on it. After it, you will be familiar with the methods of grouping data. Also, you will learn how to preprocess data. Each section has its data set so that the course will be gripping.

This section will teach you how to output specific columns by their titles or indices. Also, you will get acquainted with the ways you can select rows  by indices.

Here, you will learn how to extract data that has specific conditions. Also, you will learn how to combine them and even create your own.

In this section, you will expand your knowledge on setting different data conditions. You will learn to check if your data is in a defined list of values or between two values. You will also learn how to find the largest and smallest values.

This section is one of the most fascinating of the course. Here, you will learn how to group data in different ways. It will help you work as a data analyst to find out information on specific data groups.

This section is one of the most significant for a data analyst because if the data contains missing data values in the incorrect format, it will be impossible to work with. Thus, you will learn how to deal with such inappropriate values here. 

Finding the Largest Values of a Column

Finding the Largest Values of a Column