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R Introduction: Part I

Sveip for å vise menyen

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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
copy

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

Oppgave

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:

Løsning

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Seksjon 2. Kapittel 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 — integers take up less space.

Oppgave

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:

Løsning

Switch to desktopBytt til skrivebordet for virkelighetspraksisFortsett der du er med et av alternativene nedenfor
Alt var klart?

Hvordan kan vi forbedre det?

Takk for tilbakemeldingene dine!

Seksjon 2. Kapittel 2
Switch to desktopBytt til skrivebordet for virkelighetspraksisFortsett der du er med et av alternativene nedenfor
Vi beklager at noe gikk galt. Hva skjedde?
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