# Data Structures Exercises (Part 2)

**R-exercises**, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)

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In the Exercises we will cover Hashes, Factors and Zoo in R

Answers to the exercises are available here.

**Learn more**about Data Structures in the online course

R Data Pre-Processing & Data Management – Shape your Data!. In this course you will learn how to:

- Convert your data in R
- Use SQL query embedded in R
- Work with different data management packages like dplyr
- And much more

**Exercise 1**

Create a Hash based Key Value Pairs with three employees, with Employees as the key and the name as the values.

**Exercise 2**

Create Hash of an Employee with the Name, Age, Address & SSN as the key and the details of the employee as the values

**Exercise 3**

Create Hash and use names function to give names to the key.

**Exercise 4**

Create a factor based on marks of students and print the summary of the same.

**Exercise 5**

Create a factor based on heights and print the levels and summary for the heights factor

**Exercise 6**

Create a factors of 10 random values between 1 and 100, with on repeating values and also check the variable is a factor

**Exercise 7**

Create a factor based on Age of students and plot a graph based on the age.

**Exercise 8**

Create a random factor based on 0 & 1 and give assign false for 0 and true for 1 and check the variable by print the type of the variable.

**Exercise 9**

Create a random factor based on 0 & 1 and give assign false for 0 and true for 1 and assign new 11 the value as False.

**Exercise 10**

Create a data Frame of dates and return of company and use zoo

to convert the data.

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