How can you separate incoming serial data?

I have incoming serial data from an Arduino board that update continuously. The data is separated by questions marks (?). How would I go about reading the data in MATLAB and separating it into a (12x1) column vector so I can call an index of that vector? I have tried fscanf() but have been unable to get the results I want.

From Arduino:

152?-9?215?-669?2541?1273?-141?27?-452?20.30?97242.00?345.62? ect

delete(instrfind)
s=serial('COM4','BaudRate',9600); %start serial port to arduino
s.ReadAsyncMode = 'continuous';
fopen(s); %open port
while (s.Status == 'open')
C=fscanf(s, '?');
C 
if(s.Status ~= 'open')
    break;
end
end

Answer 1

[Matthias]

I don't have an Arduino, so I couldn't test it. But how about that:

c_str=regexp(C,'?','split');

[alex korzaniewski]

Thank you so much for the quick reply. The code worked perfectly and did exactly what I wanted. I ended up with:

delete(instrfind)
s=serial('COM4','BaudRate',9600); %start serial port to arduino
s.ReadAsyncMode = 'continuous';
fopen(s); %open port
 while (s.Status == 'open')
   C=fscanf(s);
   c_str = regexp(C, '?', 'split')

     if(s.Status ~= 'open')
       break;
     end
   end

With this, I was able to get a matrix where I could pull out certain indexes. Ex:

c_str = 

    Columns 1 through 6

      '143'    '-10'    '216'    '-59'    '-11'    '-206'

    Columns 7 through 11

      '-133'    '-115'    '-483'    '21.70'    '97483.00'

    Columns 12 through 13

      '324.90'    [1x2 char]

c_str(10) =

           '21.70'

This is real time data collected from a 10 DOF IMU.

Thanks again for the help!!