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Course Content

R Introduction: Part I

NamingsNamings

Now that you're familiar with creating vectors, let's apply them to store and label valuable information, such as grades on a scale from 1 to 100. However, the grades alone may not be self-explanatory to someone else.

Suppose the grades are as follows:

SubjectGrade
Math80
Physics75
English95
Literature100

While you know how to create a vector with grades, the next step is labeling those values with their corresponding subjects. This can be done by assigning a vector of names to names(vector), where vector is your original vector that you wish to label. Here's how you can do that.

That presents the information more clearly.

Task

Imagine you manage a local furniture store. You have a list of items and their respective prices as shown below:

ItemPrice
Sofa340
Armchair150
Dining table115
Dining chair45
Bookshelf160

Your task is to store the prices in a vector named prices and label each price with the corresponding item.

  1. Construct a vector of prices and store it in the variable prices.
  2. Use the variable items to assign names to the elements in the prices vector.
  3. Display the prices vector.

Everything was clear?

Section 2. Chapter 7
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