serial and arduino command

Hi

I want to read some datas with serial connection in the matlab and write some datas with arduino ,is it possible?

something like this:

s=serial('com5')
a=arduino('com5','uno')
for i=1:100
    b=fscanf(s);
    if b==2
        writeDigitalPin(a,'D2',1)
    end
    pause(1)
end

se