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Learn Numbers | Vectors
TEST R COURSE
course content

Course Content

TEST R COURSE

TEST R COURSE

1. Basic Syntax and Operations
2. Vectors

book
Numbers

You got "double" as an output in the last chapter, despite the number 10 being an integer. Let's investigate it.

What types can numeric values in R be? Let's remind. These are:

  • numeric/double - real numbers.
  • integer - integer numbers.
  • complex - complex numbers.

But in the last chapter, you got "double" for an integer number. How to make R recognize integer numbers? One of the ways is to simply put L at the end of the number. For example,

12
typeof(10) # Example of double type typeof(10L) # Example of integer type
copy

This script will return the next output:

Why do we even need to differentiate 10 and 10L values? The answer is memory consumption - storing integers is 'easier' for computer memory.

Task

Swipe to start coding

  1. Assign the current year's value to the variable year. Make this variable integer type by using L.
  2. Output type of newly created variable year.

Solution

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Everything was clear?

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Thanks for your feedback!

Section 2. Chapter 2
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book
Numbers

You got "double" as an output in the last chapter, despite the number 10 being an integer. Let's investigate it.

What types can numeric values in R be? Let's remind. These are:

  • numeric/double - real numbers.
  • integer - integer numbers.
  • complex - complex numbers.

But in the last chapter, you got "double" for an integer number. How to make R recognize integer numbers? One of the ways is to simply put L at the end of the number. For example,

12
typeof(10) # Example of double type typeof(10L) # Example of integer type
copy

This script will return the next output:

Why do we even need to differentiate 10 and 10L values? The answer is memory consumption - storing integers is 'easier' for computer memory.

Task

Swipe to start coding

  1. Assign the current year's value to the variable year. Make this variable integer type by using L.
  2. Output type of newly created variable year.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 2. Chapter 2
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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