Comparison operators in R Programming - Step-by-Step Execution

Concept Flow - Comparison operators

Start

↓

Evaluate Left Value

↓

Evaluate Right Value

↓

Apply Comparison Operator

↓

Result: TRUE or FALSE

↓

End

The program compares two values using a comparison operator and produces TRUE or FALSE as the result.

Execution Sample

R Programming

a <- 5
b <- 3
result <- a > b
print(result)

This code compares if a is greater than b and prints TRUE or FALSE.

Execution Table

Step	Action	Evaluation	Result
1	Assign a	a <- 5	a = 5
2	Assign b	b <- 3	b = 3
3	Compare a > b	5 > 3	TRUE
4	Assign result	result <- TRUE	result = TRUE
5	Print result	print(result)	[1] TRUE

💡 All steps completed, comparison result printed.

Variable Tracker

Variable	Start	After Step 1	After Step 2	After Step 3	After Step 4	Final
a	undefined	5	5	5	5	5
b	undefined	undefined	3	3	3	3
result	undefined	undefined	undefined	undefined	TRUE	TRUE

Key Moments - 2 Insights

Why does the comparison a > b return TRUE?

Because at step 3 in the execution_table, the values 5 and 3 are compared, and 5 is indeed greater than 3, so the result is TRUE.

What type of value does a comparison operator return in R?

As shown in step 3 and 5, comparison operators return a logical value: TRUE or FALSE.

Visual Quiz - 3 Questions

Look at the execution_table at step 3, what is the result of the comparison a > b?

A 5

B FALSE

C TRUE

D 3

💡 Hint

Check the 'Result' column in step 3 of the execution_table.

At which step is the variable 'result' assigned the comparison outcome?

A Step 2

B Step 4

C Step 3

D Step 5

💡 Hint

Look at the 'Action' column for assignment of 'result' in the execution_table.

If we change b to 7, what would be the result of a > b at step 3?

A FALSE

B TRUE

C 5

D 7

💡 Hint

Compare values 5 and 7 in the 'Evaluation' column of step 3.

Concept Snapshot

Comparison operators in R compare two values and return TRUE or FALSE.
Common operators: >, <, >=, <=, ==, !=
Syntax example: result <- a > b
Result is logical (TRUE/FALSE).
Used for decision making and filtering.

Full Transcript

This visual execution trace shows how comparison operators work in R. First, variables a and b are assigned values 5 and 3. Then, the comparison a > b is evaluated as 5 > 3, which is TRUE. This result is stored in the variable 'result' and printed. Comparison operators always return TRUE or FALSE, which are logical values in R. This helps programs decide what to do next based on conditions.