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,
12typeof(10) # Example of double type typeof(10L) # Example of integer type
This script will return the next output:
[1] "double"
[1] "integer"
Why do we even need to differentiate 10
and 10L
values? The answer is memory consumption - storing integers is 'easier' for computer memory.
Swipe to start coding
- Assign the current year's value to the variable
year
. Make this variable integer type by usingL
. - Output type of newly created variable
year
.
Solução
Obrigado pelo seu feedback!
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Numbers
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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,
12typeof(10) # Example of double type typeof(10L) # Example of integer type
This script will return the next output:
[1] "double"
[1] "integer"
Why do we even need to differentiate 10
and 10L
values? The answer is memory consumption - storing integers is 'easier' for computer memory.
Swipe to start coding
- Assign the current year's value to the variable
year
. Make this variable integer type by usingL
. - Output type of newly created variable
year
.
Solução
Obrigado pelo seu feedback!
Awesome!
Completion rate improved to 12.5single