Creating a data frame and accessing its properties

A data frame in R is also a two-dimensional arrangement like a matrix, but it can contain a combination of data types in different columns. One column could be numeric, another column could be character. A data frame can be considered as a natural generalization of a matrix in R. In this recipe, you will learn how to create a data frame and how to access various columns and/or elements of it.

Getting ready

Since you have already learned to create a matrix, it will be relatively simple to understand the data frame. It is good to have an understanding of variables and datasets. Though the structure of a data frame is similar to a matrix, it has more information within it.

How to do it…

Let's take a look at the following steps to learn how to create a data frame in R:

1. To create a data frame in R, you will have to use a function called data.frame(). This function is the convenient way to create a data frame. Within the data.frame() function, it contains...