Question

If you explicitly want an integer in R, you need to specify the____.

A. L suffix.
B. C suffix.
C. I suffix.
D. None of the above.

Answer 1

In R, to explicitly define an integer, you need to use the L suffix; for example, 5L assigns an integer value of 5. Other suffix options like C or I are not correct in this context.

Step-by-step explanation:

In the R programming language, when you explicitly want to define an integer, you need to specify the L suffix. This suffix indicates to R that the value should be stored as an integer rather than the default numeric type (which is usually double).

For example, to assign the integer value 5 to a variable, you would write:

my_integer <- 5L

Without the L suffix, R would treat the number as a double precision floating point number. You may check the type of a variable using the class() function:

class(my_integer) # Returns 'integer'

Choices such as the 'C suffix' and 'I suffix' are incorrect and do not apply when specifying an integer in R.

To summarize, the correct answer to the student's question is A. L suffix.