In this tutorial, we are going to learn about how to remove the last character of a string in the R language.
To remove the string’s last character, we can use the built-in
substring() function in R.
substring()function accepts 3 arguments, the first one is a string, the second is start position, third is end position.
Here is an example, that removes the last character
t from the
month = 'august' result = substring(month,1, nchar(month)-1) print(result)
In the above example, we have passed the
1, nchar(month)-1 as a second and third arguments to the
substring() function. so it begins the extraction at position
1 and extracts before the last character position (5) of a string.
nchar() function is used to caluclate the length of a string in R.