I have a data set patients.mat in matlab. How do I convert the names in the LastName variable (using the ismember function) so that each vowel is detected, the letter f is added and then the vowel is added after the f. for example if the last name is Smith the name should be Smifith. Then, how do I make a new variable in which you change the last names with the added f and vowel to have a ubu before each vowel? also using the ismember function