R – The Basic Data Types & Basic Operations

To start programming in any language, we may need to create variables to store some information. Now, this information can be numeric, or character or a Boolean value. Based on the data type of this variable, the OS allocates memory to decide what can be stored in the reserved memory.
R works with numerous data types. The most basic ones are as follows:
  • Decimals values are called numeric.(e.g. 2.2)
  • Natural numbers are called integers. Integers are also numeric.(e.g. 5)
  • Boolean values are called logical.(e.g. TRUE /FALSE)
  • Text (or string) values are called character.(e.g. “Test R”)
Problem:
Assign values to some variables of Different Data Types and then play with those variables.
Solution:
1. To assign a value to a variable in R, we need to use the assignment operator “<-“.

Assign values to Variables
2. To print the values of these variables, we can just type the variable name. Also, we can use the “Print()” command to display the variable value.


 

Print the variable values

 




Use of  Print() Funtion
3. To determine the Data Type of a variable, we can use the Class() Function like below

Check the Data Type of the Variables
4. To list the variables that are defined in my workspace, we can use ls() function as below:
5. To delete a variable, we need to use rm() function as below:

The above are the most basic data types and some basic operations on the variables. To understand R and write some code in R, we need to learn about some complex Data types. Please find the links below:

  1. Creating a Vector in R
  2. Creating a Matrix in R
  3. Create a List in R
  4. Creating a Data Frame in R

Start Learning and Happy Coding!

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