Introduction to data frames
1. Welcome to Part 3
Data frame structure
Accessing columns in a data frame
Accessing rows and columns combined in a data frame
Data frame analysis


Welcome to Part 3 of our course! Now that you know how to analyze vectors, it's time to learn how to perform simple data analysis on several combined vectors at once.

In this part of the course, we are going to analyze a list of potential cities and countries that the company Versico is considering for expanding its business. They'll mainly focus on large European cities. Versico's primary countries of interest are France, Germany, Portugal, Ireland, Poland, and the Netherlands, but it will also consider various other European countries before finalizing its decision.


The cities variable contains the list of cities that Versico is considering for expanding its business. Display the contents of the variable. Observe the structure. We'll analyze it in the next exercise.