Printing out to the Screen or to a File in R Programming - cat() Function

cat() function in R Language is used to print out to the screen or to a file.
 

Syntax: 
cat(..., file = "", sep = " ", fill = FALSE, labels = NULL, append = FALSE)
Parameters: 
...: atomic vectors, names, NULL and objects with no output 
file: the file in which printing will be done 
sep: specified separator 
fill: If fill=TRUE, a new line will be printed, otherwise not 
labels: specified labels 
 

Example 1: 
 

# R program to illustrate
# cat function

# Creating some string and print it
x <- "GeeksforGeeks\n"
y <- "Geeks\n"

# Calling cat() function
cat(x)
cat(y)

# Creating a sequence from 1 to 9
x <- 1:9

# Calling cat() function
cat(x, sep =" + ")
cat("\n")
cat(x, sep =" / ")

Output: 
 

GeeksforGeeks
Geeks
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9
1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9

Example 2: 
 

# R program to illustrate
# cat function

# Creating a sequence from 1 to 9
x <- 1:9

# Calling cat() function 

# fill value TRUE will print
# a new line 
cat(x, sep =" + ", fill = TRUE)
cat(x, sep =" / ", fill = FALSE)

# Printing new line
cat("\n")

# Each number from 1 to 9 will be
# assigned with alphabets a to i
cat(x, fill = 2, labels = paste("(", letters[1:9], "):"))         

Output: 
 

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9
1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9
( a ): 1 
( b ): 2 
( c ): 3 
( d ): 4 
( e ): 5 
( f ): 6 
( g ): 7 
( h ): 8 
( i ): 9