Зміст курсу

TEST R COURSE

1. Basic Syntax and Operations

Hello, R!Print?Comments Integer Division and Remainders

2. Vectors

What is a Vector?Numbers Complex Numbers Converting

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

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.

Завдання

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

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 2. Розділ 2

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

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.

Завдання

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

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 2. Розділ 2

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

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.

Завдання

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

Все було зрозуміло?

Дякуємо за ваш відгук!

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

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.

Завдання

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

Секція 2. Розділ 2