  Course Content

# R Introduction: Part I

R Introduction: Part I

##   Namings

Now you know how to create vectors. Assume that the vector represents valuable information, for example, grades (on a scale from 1 to 100). But grades themselves most likely will not be understood by another person.

Assume that the grades are the next:

 Subject Grade Math 80 Physics 75 English 95 Literature 100

You know how to create a vector with grades. But how do you assign specific names to values? You can do it by assigning to `names(vector)` the vector of names. The `vector` in parenthesis is the vector of which elements you want to name. Let's look at the example.  That looks much better.

Assume you run a local store with furniture. The items and prices are shown below:

 Item Price Sofa 340 Armchair 150 Dining table 115 Dining chair 45 Bookshelf 160

You need to save the prices within the `prices` vector and name each price with the respective item.

1. Create a vector of prices and assign it to the `prices` variable.
2. Assign items' names (they are saved in the `items` variable) to `prices` vector' items.
3. Output the `prices` vector.

Everything was clear?

Section 2. Chapter 7 