What will be the output of the following R code snippet?
> paste("a", "b", se = ":")
a) “a+b”
b) “a=b”
c) “a b :”
d) none of the mentioned
Q.2.
Point out the correct statement?
a) In R, a function is an object which has the mode function
b) R interpreter is able to pass control to the function, along with arguments that may be necessary for the function to accomplish the actions that are desired
c) Functions are also often written when code must be shared with others or the public
d) All of the mentioned
Q.3.
The __________ function returns a list of all the formal arguments of a function.
a) formals()
b) funct()
c) formal()
d) fun()
Q.4.
Point out the wrong statement?
a) A formal argument can be a symbol, a statement of the form ‘symbol = expression’, or the special formal argument
b) The first component of the function declaration is the keyword function
c) The value returned by the call to function is not a function
d) Functions are also often written when code must be shared with others or the public
Q.5.
You can check to see whether an R object is NULL with the _________ function.
a) is.null()
b) is.nullobj()
c) null()
d) as.nullobj()
Q.6.
Which of the following code will print NULL?
a) > args(paste)
b) > arg(paste)
c) > args(pastebin)
d) > arg(bin)
Q.7.
What will be the output of the following R code snippet?
Hello, world!
[14
a) 4
b) 3
c) 2
d) 5
Q.8.
What will be the output of the following R code snippet?
Hello, world!
[15
a) “a+b”
b) “a=b”
c) “a:b”
d) a*b
Q.9.
What will be the output of the following R code snippet?
Hello, world!
[16
a) 32
b) 42
c) 52
d) 45
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