remove first and last character from string R

To remove the first and last character from a string in R, you can use the substr() function. Here are the steps:

  1. Step 1: Define the string you want to modify. For example, let's say the string is stored in a variable called myString.

  2. Step 2: Use the substr() function to remove the first character. The substr() function takes three arguments: the string to be modified, the starting position, and the number of characters to extract. In this case, we want to start at the second character (position 2) and extract all characters except the last one. So the code would be:

R myString <- substr(myString, 2, nchar(myString)-1)

The nchar() function is used to determine the length of the string, and we subtract 1 to exclude the last character.

  1. Step 3: Finally, use the substr() function again to remove the last character. This time, we want to start at the first character and extract all characters except the last one. So the code would be:

R myString <- substr(myString, 1, nchar(myString)-1)

The result will be the modified string with the first and last characters removed.

Here's the complete code snippet for removing the first and last character from a string in R:

myString <- "example"
myString <- substr(myString, 2, nchar(myString)-1)
myString <- substr(myString, 1, nchar(myString)-1)

After executing this code, the value of myString will be "xampl".