Plotting from serial scanf while loop

     Basically i want to send data from the serial port and plot it against the returned data. As each number is sent a response is sent back, so i had the idea of putting scanf in a while loop and running for the number of integers sent. But it only seems to be plotting the last entry. 
Can anyone help me with this? 
Are there any other examples like this online?

s = serial('COM3');
set(s,'BaudRate',9600);
s.InputBufferSize = 6000;
fopen(s);
     t=1;
     a=0;
     x=0;
     fprintf(s,'0 1 2 3 4 5 6 7 8 9')

       while(t<10)
           a =fscanf(s,'%d');
           t=t+1;
           x =[t a];

         plot(x);
            axis auto;
     grid on;

       end