Ch. 2 | Exercise 3

Chapter 2 | Exercise 3

Create a character vector with the names of your fellow students or friends. Create a numeric vector with their heights (alternatively, the number of siblings, ages, etc.). Combine this information in one data frame.

Key

Create a character vector with the first names. For example:

> firstnames <- c("Anna", "Brad", "Caren", "Doug", "Emma")
> firstnames
[1] "Anna"  "Brad"  "Caren" "Doug"  "Emma"

Create a numeric vector with the heights. For example:

> heights <- c(168, 185, 159, 174, 171)
> heights
[1] 168 185 159 174 171

Now create a data frame:

> friends <- data.frame(firstnames, heights)
> friends
  firstnames heights
1       Anna     168
2       Brad     185
3      Caren     159
4       Doug     174
5       Emma     171

Note that the character vector by default becomes a factor.