How do i change the input to make it any word I type in?

In this program I am supposed to take a character array s as input and return a new character array with each letter shifted forward once in the alphabet (Assuming that the input s will never contain the letter 'z'.)

So far here's my code:

function S = shiftletters('apple')
S=char('a':'z'+1);

Answer 1

[Walter Roberson]

In a function line, you need to name a variable that will receive the passed value, such as

function S = shiftletters(TheInputWord)

Then inside the function your code should act upon the contents of that variable name (such as TheInputWord). For example to reverse the input you could use

 fliplr(TheInputWord)