You can use the cat() function to easily print multiple variables on the same line in R.

This function uses the following basic syntax:

cat(variable1, variable2, variable3, ...)

The following examples show how to use this syntax in different scenarios.

Example 1: Print Character String & Variable on Same Line

The following code shows how to use the cat() function to print a character string and several numeric variables on the same line:

#define character string
my_text <- "The answer is"

#define numeric variables
my_value1 <- 5
my_value2 <- 10

#print character string and numeric variables on the same line
cat(my_text, my_value1, "or", my_value2)

The answer is 5 or 10

Each of the variables are printed on the same line.

Example 2: Print Multiple Variables on Same Line with No Text

The following code shows how print several variables from some function on the same line without any text:

#define function
do_stuff <- function(x) {
    x2 <- x * 2
    x3 <- x * 3
    x4 <- x * 4
    cat(x2, x3, x4)
}

#use function
do_stuff(5)

10 15 20

The function returns all three numeric variables on the same line without any text explaining which variable names correspond to each value.

Example 3: Print Multiple Variables on Same Line with Text

The following code shows how print several variables from some function on the same line with text:

#define function
do_stuff <- function(x) {
    x2 <- x * 2
    x3 <- x * 3
    x4 <- x * 4
    cat("x2 =", x2, "x3 =", x3, "x4 =", x4)
}

#use function
do_stuff(5)

x2 = 10 x3 = 15 x4 = 20

The function returns all three numeric variables on the same line with text explaining which variable names correspond to each value.

Example 4: Print Multiple Variables on New Lines with Text

#define function
do_stuff <- function(x) {
    x2 <- x * 2
    x3 <- x * 3
    x4 <- x * 4
    cat("x2 =", x2, "nx3 =", x3, "nx4 =", x4)
}

#use function
do_stuff(5)

x2 = 10 
x3 = 15 
x4 = 20

The function returns all three variables on different lines with text explaining which variable names correspond to each value.

Additional Resources