{??? Error using ==> RandStream>RandStream.randsample at 127
Expected input to be nonnegative.

Error in ==> ProteinDecay>ProteinDecay.evolveState_DegradeMonomers at 875



Error in ==> ProteinDecay>ProteinDecay.evolveState at 537



Error in ==> Simulation.evolveState at 70



Error in ==> Simulation.run at 36



Error in ==> runSimulation at 56



Caused by:
    Simulation run-time error at 46890. Saving simulation at
    '2011_12_05_00_16_20/54/err.mat' and exiting.
} 

Error using ==> RandStream>RandStream.randsample at 127
Expected input to be nonnegative.
MATLAB:expectedNonnegative