the Matlab code does not work as is provided. had this been tested? does it accept input coordinates and generate plots $?$ Currently I am getting below error

Error using assert

Insufficient columns in q

Error in SerialLink$/$plot $($line $206)$

assert$($numcols$($qq$)==$ n$,\text{'}$RTB:SerialLink:plot:badarg', 'Insufficient columns in q$\text{'})$

$^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^$

Error in courseProject$2($line $13)$

robot.plot$($q$0)$;

$^^^^^^^^^^^^^^$