What are R assignment operators?
a) Operators that assign values to variables
b) Operators that perform arithmetic operations
c) Operators that combine logical expressions
d) Operators that compare values
Answer:
a) Operators that assign values to variables
Explanation:
R assignment operators are used to assign values to variables. The two most common assignment operators are:
- <- : The leftward assignment operator, used to assign a value to a variable.
- = : The equal sign, also used for assignment, though less commonly than <-.
- >- : The rightward assignment operator, used to assign a value from right to left.
# Examples of R assignment operators
x <- 10 # Leftward assignment
y = 20 # Equal sign assignment
20 -> z # Rightward assignment
print(x) # Output: 10
print(y) # Output: 20
print(z) # Output: 20
In this example, different assignment operators are used to assign values to variables x
, y
, and z
. The variables hold the assigned values, which can then be used in further calculations or operations.
Assignment operators are fundamental in R, as they allow you to store and manage data within your scripts, enabling more complex analyses and computations.