I'm trying to build a simple function that gives values to parameters based on input. Attached are my programs
In the main program, if I input ship_type='Passenger ship', then everything worked fine
But when I change it to ship_type='cargo ship' or 'container ship', I get the error message 'Matrix dimensions must agree'
So I'm confused.
What's wrong with my program?
Btw, I'm using version 2017a