Point out the correct statement?
A. The traceback() function must be called immediately after an error occurs
B. The debugger calls the browser at the very low level of the function body
C. Every time you call the mod() function it will launch the interactive debugger
D. R provides only two tools to help you with debugging your code
Answer: Option A
This Question Belongs to R Programming >> Control Structures In R Programming
Which control structure in R is used to execute a block of code repeatedly until a condition is met?
A. if-else loop
B. for loop
C. while loop
D. do-while loop
In R, what is the purpose of the if-else statement?
A. To execute a block of code if a condition is true, otherwise execute another block of code
B. To create a loop that iterates a specified number of times
C. To check multiple conditions sequentially
D. To execute a block of code repeatedly until a condition is met
How is the switch() function used in R?
A. To toggle between TRUE and FALSE values
B. To switch the positions of two elements
C. To select one of several alternatives
D. To change the direction of a loop
In R, what is the syntax for the for loop?
A. for (i in 1:10) { code_block }
B. for (i = 1 to 10) { code_block }
C. for (i = 1; i <= 10; i++) { code_block }
D. for (i from 1 to 10) { code_block }
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