y, all these changes inside the object are "monitored" by the object and it might not allow you to change the value
            (e.g. invalid option settings, wrong dimension of <tt>xinit</tt>, ...). In such a case you will get an error message and the structure is not changed. Or you might get a warning that something
            has been changed but it looks suspicious so it just points you that it might be wrong.
         </p>
         <p>You can also always check how the problem is set or what are the d