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Learn Numbers | Basic Data Types and Vectors
R Introduction: Part I

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Numbers

In the previous section, we observed that the number 10 was identified as a double even though it is an integer. Let's delve into this peculiarity.

R can categorize numeric values into several types, which are:

  • double - representing real numbers;

  • integer - for whole numbers;

  • complex - for numbers with both a real and an imaginary part.

To have R recognize 10 as an integer instead of a double, you can append L to the number. Here’s how you can do it:

12
typeof(10) # Example of double type typeof(10L) # Example of integer type
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Differentiating between 10 and 10L is important because of how memory is utilized β€” integers take up less space.

Task

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  1. Assign the current year's numerical value to a variable named year, and ensure that it is of integer type by appending L.

  2. Determine and display the type of the year variable:

Solution

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SectionΒ 2. ChapterΒ 2

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book
Numbers

In the previous section, we observed that the number 10 was identified as a double even though it is an integer. Let's delve into this peculiarity.

R can categorize numeric values into several types, which are:

  • double - representing real numbers;

  • integer - for whole numbers;

  • complex - for numbers with both a real and an imaginary part.

To have R recognize 10 as an integer instead of a double, you can append L to the number. Here’s how you can do it:

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

Differentiating between 10 and 10L is important because of how memory is utilized β€” integers take up less space.

Task

Swipe to start coding

  1. Assign the current year's numerical value to a variable named year, and ensure that it is of integer type by appending L.

  2. Determine and display the type of the year variable:

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!

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