R Comments

Comments are mainly used to explain a piece of code, making it easier for readers to understand. Programming language comments are ignored by the compiler and will not affect the execution of the code.

Generally, programming language comments are divided into single-line comments and multi-line comments, but R language only supports single-line comments, and the comment symbol is #.

In fact, if there are multi-line comments, we just need to add the # symbol to each line.

Single-line comments

# This is my first programming code
myString <-　"Hello, World!"
print ( myString )

Multi-line comments

# R Language Implementation of Adding Two Numbers
　　
# Variable Assignment
a <-　9
b <-　4
# Output Result
print(a　+　b)

In fact, there is another workaround for multi-line comments, which is to use if language, as shown in the following example:

Multi-line comments

if(FALSE) {
　　　　"
　　　　This is an example of a multi-line comment
　　　　Comment content is placed between single quotes or double quotes
　　　　"
}
myString <-　"Hello, World!"
print ( myString )