ok , I might have found something.. check the link below
to see if it works. I havent had the time to try it
http://www.mathworks.com/support/solutions/data/1-19HN4.html?solution=1-19HN4
ashinie,
I have the same problem as you also. I have a trained neural network from matlab, which is used to predict protein secondary structures. I'm having trouble calling the sim() function from matlab.
Have you find a solutions yet?