i need help writing a function!

I am trying to write a function that looks like this

function update(student, field,value)

I need it to allow me to input a student structure into the command window like this:

>> test_student=struct('name','Kevin L. Smith','gpa', 3.71,'standing' true)

And then allows me to update the value for any given field in the command window. For example if this is entered:

updated_student=update(test_student,'name','Kevin L. Sams')

the output would be:

updated_student=

name: 'Kevin L. Sams'

gpa:  3.71

standing:  1

I have been trying to figure this out for hours and do not even have any script or codes to show for it! I am having a lot of trouble with this one.

Answer 1

[Walter Roberson]

function student = update(student, field, value)
  student = setfield(student, field, value);