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Repeat Character String N Times in R

  • Last Updated : 03 Sep, 2021

In this article, we will discuss how to repeat the character string N times in the R programming language. Character string means a set of characters .

Example:

“Hello Geek”,”Python”,”Languages_Python” are some examples

Method 1: Using replicate() method

This function used to give n replicas from the character string

Syntax:

replicate(N, “string”)

where,

  • N is the number of times string is replicated
  • string is the input character string

Example: R program to repeat the character string N times using replicate

R




# get 2 times
print(replicate(2, "Hello_Geek"))
 
print("-----")
 
# get 10 times
print(replicate(10, "Python"))
 
print("-----")
 
# get 3 times
print(replicate(3, "java"))
 
print("-----")
 
# get 4 times
print(replicate(4, "dbms"))
 
print("-----")
 
# get 5 times
print(replicate(5, "sql"))
 
print("-----")
 
# get 7 times
print(replicate(7, "big data"))

 

 

Output:

 



[1] “Hello_Geek” “Hello_Geek”

[1] “—–“

[1] “Python” “Python” “Python” “Python” “Python” “Python” “Python” “Python”

[9] “Python” “Python”

[1] “—–“

[1] “java” “java” “java”

[1] “—–“

[1] “dbms” “dbms” “dbms” “dbms”

[1] “—–“

[1] “sql” “sql” “sql” “sql” “sql”



[1] “—–“

[1] “big data” “big data” “big data” “big data” “big data” “big data” “big data”

Method 2: Using rep() method

 

This function works similar to replicate .

 

Syntax:

 

rep( “string”,N)

 

Example: R program that repeats character String N times using rep

 

R




# get 2 times
print(rep("Hello_Geek", 2))
 
print("-----")
 
# get 10 times
print(rep("Python", 10))
 
print("-----")
 
# get 3 times
print(rep("java", 3))
 
print("-----")
 
# get 4 times
print(rep("dbms", 4))
 
print("-----")
 
# get 5 times
print(rep("sql", 5))
 
print("-----")
 
# get 7 times
print(rep("big data", 7))

Output:

[1] “Hello_Geek” “Hello_Geek”

[1] “—–“

[1] “Python” “Python” “Python” “Python” “Python” “Python” “Python” “Python”

[9] “Python” “Python”

[1] “—–“

[1] “java” “java” “java”

[1] “—–“



[1] “dbms” “dbms” “dbms” “dbms”

[1] “—–“

[1] “sql” “sql” “sql” “sql” “sql”

[1] “—–“

[1] “big data” “big data” “big data” “big data” “big data” “big data” “big data”

Method 3 : Using paste along with replicate

This paste is used to organize the repeated strings in the correct way, It will separate the strings with the given delimiter.

Syntax:

paste(replicate(N, “string”), collapse = “delimiter”)

where,

  • paste is used to display the data
  • replicate is used to get the N character strings
  • collapse is sued to separate the strings

Example: R program to repeat the character strings using paste command

R




# get 2 times with delimiter --
paste(replicate(2, "Geek"), collapse = "--")
 
print("-----")
 
# get 10 times with delimiter ,
paste(replicate(2, "Python"), collapse = ",")

Output:

[1] “Geek–Geek”

[1] “—–“

[1] “Python,Python”

Method 4: Using strrep() function

This function is used to get the N character strings in a single string.

Syntax:

strrep( “string”,N)

Example: R program to get N character strings using strrep() function

R






# get 2 times
print(strrep( "Hello_Geek",2))
 
print("-----")
 
# get 10 times
print(strrep( "Python",10))
 
print("-----")
 
# get 3 times
print(strrep( "java",3))
 
print("-----")
 
# get 4 times
print(strrep("dbms",4))
 
print("-----")
 
# get 5 times
print(strrep( "sql",5))
 
print("-----")
 
# get 7 times
print(strrep("big data",7))

 

 

Output:

 

[1] “Hello_GeekHello_Geek”

[1] “—–“

[1] “PythonPythonPythonPythonPythonPythonPythonPythonPythonPython”

[1] “—–“

[1] “javajavajava”

[1] “—–“

[1] “dbmsdbmsdbmsdbms”

[1] “—–“

[1] “sqlsqlsqlsqlsql”

[1] “—–“

[1] “big databig databig databig databig databig databig data”

 


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