Exercise

# Vectors II

In the previous assignment, you created 3 vectors: a numeric vector, a character vector and a boolean vector. Sometimes you only want to select a specific element from one of those vectors instead of using the entire vector. R makes this very easy using indexing.

Indexing entails the use of square brackets `[]`

to select elements from a vector. For instance, `numeric_vector[1]`

will select the first element of the vector `numeric_vector`

. `numeric_vector[c(1,3)]`

will select the first and the third element of the vector `numeric_vector`

.

Instructions

**100 XP**

- Select the letter "a" from
`character_vector`

- Select the second and the third element of
`boolean_vector`