10 Feb R String Operations

Posted at 10:03h in R by

In this lesson, we will work around the following useful string operations in the R programming language:

  • Length of String
  • Concatenate Strings
  • Convert a string to uppercase
  • Convert a string to lowercase

Length of String

The nchar() method is used in the R programming language to get the length of a string. It gets the number of characters in the string. Let us see an example:

# Our string
myStr <- "Amit Diwan"

# Display the string
myStr

# Get the length of the string
nchar(myStr)

Output

[1] "Amit Diwan"
[1] 10

Concatenate Strings

The paste() method is used in the R programming language to concatenate strings. Let us see an example:

# Our strings
myStr1 <- "Virat"
myStr2 <- "Kohli"

# Display the strings
myStr1
myStr2

# Concatenate the strings
paste(myStr1, myStr2)

Output

[1] "Virat"
[1] "Kohli"
[1] "Virat Kohli"

Convert to Uppercase

To convert a string to uppercase, use the toupper() method in the R programming language:

# Our string
myStr <- "john"

# Display the string
myStr

# Convert to uppercase
toupper(myStr)

Output

[1] "john"
[1] "JOHN"

Convert to Lowercase

To convert a string to lowercase, use the tolower() method in the R programming language:

# Our string
myStr <- "AMIT"

# Display the string
myStr

# Convert to lowercase
tolower(myStr)

Output

[1] "AMIT"
[1] "amit"

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