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Course Content

R Introduction: Part I

1. Basic Syntax and Operations

Hello, R!Print?CommentsInteger Division and RemaindersExponentiationcat() FunctionVariablesRevenue CalculationAssignment Ways

2. Vectors

What is a Vector?NumbersComplex NumbersConvertingLogical TypeVectorsNamingsIndexingModifyingDeletingOperations with Vectors

3. Factors

What is a Factor?IndexingLevelsSummaryIntervalsGrades Summary

R Introduction: Part I

Logical TypeLogical Type

We're now turning our attention to logical data types.

Logical data types can only hold two values: TRUE or T, and FALSE or F. It's important to note that these values are case-sensitive; thus, false is not recognized as a logical type.

Logical types are primarily used for evaluating conditions. 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 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.

Task

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

Avoid using the print() function here.

Everything was clear?

Section 2. Chapter 5
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course content

Course Content

R Introduction: Part I

1. Basic Syntax and Operations

Hello, R!Print?CommentsInteger Division and RemaindersExponentiationcat() FunctionVariablesRevenue CalculationAssignment Ways

2. Vectors

What is a Vector?NumbersComplex NumbersConvertingLogical TypeVectorsNamingsIndexingModifyingDeletingOperations with Vectors

3. Factors

What is a Factor?IndexingLevelsSummaryIntervalsGrades Summary

R Introduction: Part I

Logical TypeLogical Type

We're now turning our attention to logical data types.

Logical data types can only hold two values: TRUE or T, and FALSE or F. It's important to note that these values are case-sensitive; thus, false is not recognized as a logical type.

Logical types are primarily used for evaluating conditions. 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 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.

Task

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

Avoid using the print() function here.

Everything was clear?

Section 2. Chapter 5
toggle bottom row
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