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Logical Types | Basic Data Types and Vectors
R Introduction: Part I

Logical Types

Let's now turn our attention to logical data types.

Logical data types in R are data types that can hold only two values: TRUE (or T) and FALSE (or F). These values are case-sensitive (e.g., false is not recognized as a logical type) and are primarily used to evaluate conditions and expressions.

For instance, if you evaluate 2 > 1, it will return TRUE because 2 is indeed greater than 1. This principle will be highly relevant in later chapters.

Numbers and strings (text) can also be converted to logical types. Any number except 0 will be converted to TRUE (0 converts to FALSE), and the strings 'F', 'false', 'False', and 'FALSE' will convert to the logical FALSE. The same principle applies for logical TRUE.

When converting logical values to numbers, FALSE becomes 0, and TRUE becomes 1.

Завдання

  1. Assign the result of the expression 19*54 > 76*13 to the variable logic.
  2. Show the value of the logic variable.
  3. Show the data type of the logic variable.
  4. Convert the logic variable to an integer and show the result.

Avoid using the print() function.

Все було зрозуміло?

Секція 2. Розділ 4
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course content

Зміст курсу

R Introduction: Part I

Logical Types

Let's now turn our attention to logical data types.

Logical data types in R are data types that can hold only two values: TRUE (or T) and FALSE (or F). These values are case-sensitive (e.g., false is not recognized as a logical type) and are primarily used to evaluate conditions and expressions.

For instance, if you evaluate 2 > 1, it will return TRUE because 2 is indeed greater than 1. This principle will be highly relevant in later chapters.

Numbers and strings (text) can also be converted to logical types. Any number except 0 will be converted to TRUE (0 converts to FALSE), and the strings 'F', 'false', 'False', and 'FALSE' will convert to the logical FALSE. The same principle applies for logical TRUE.

When converting logical values to numbers, FALSE becomes 0, and TRUE becomes 1.

Завдання

  1. Assign the result of the expression 19*54 > 76*13 to the variable logic.
  2. Show the value of the logic variable.
  3. Show the data type of the logic variable.
  4. Convert the logic variable to an integer and show the result.

Avoid using the print() function.

Все було зрозуміло?

Секція 2. Розділ 4
toggle bottom row
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