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Extracting Substrings from a Character Vector in R Programming – substring() Function
  • Last Updated : 01 Jun, 2020

substring() function in R Language is used to extract substrings in a character vector.

Syntax: substring(text, first, last)

Parameters:
text: character vector
first: integer, the first element to be replaced
last: integer, the last element to be replaced

Example 1:




# R program to illustrate
# substring function
  
# Calling substring() function
substring("Geeks", 2, 3)
substring("Geeks", 1, 4)
substring("GFG", 1, 1)
substring("gfg", 3, 3)

Output :

[1] "ee"
[1] "Geek"
[1] "G"
[1] "g"

Example 2:




# R program to illustrate
# substring function
  
# Initializing a string vector
x <- c("GFG", "gfg", "Geeks")
  
# Calling substring() function
substring(x, 2, 3)
substring(x, 1, 3)
substring(x, 2, 2)

Output:

[1] "FG" "fg" "ee"
[1] "GFG" "gfg" "Gee"
[1] "F" "f" "e"
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