FREE R Programming Language MCQ Questions and Answers
In R code, how do you add comments?
Explanation:
In R, the # character is used to indicate a comment.
Which function is frequently employed to combine elements?
Explanation:
The paste() function is often used to concatenate elements in R. The paste() part takes one or more character strings as input and combines them into a single character string.
How many variables with the same value are assigned in a single line?
Explanation:
In R, you can assign the same value to multiple variables in a single line using the assignment operator <-.
R is a React alias.
Explanation:
R is not an alias of React. They are two distinct programming languages that have different purposes and syntax. R is primarily used for statistical computing and graphics, while React is used for building user interfaces in web development.
You must specify a variable's data type in R.
Explanation:
In R, you do not have to explicitly declare the data type of a variable when you first create it. R is a dynamically typed language, which means that the data type of a variable is determined automatically based on the value assigned to it.
What R syntax should I use to output "Hello World"?
How do you make the variable x have the number 5 as its value?
Explanation:
In R, you can create a variable named x with the numeric value 5 using the assignment operator '<-.'
This creates a variable named x and assigns it the value 5. The <- operator assigns a value to a variable in R. You can then use the variable x in other calculations or operations in your R code.