ok, i know what you mean. the problem is, that I want to use it in an Simulink S-Function. So with every step there is a vector with dimensions [80,1]. When the first vector come, it should saved in a variable oder file. Then next step the next vector should be written in the same variable or file. But not vector after vector ... i want it as one big vector.
alternative, this would be even better: block or function to buffer 10 vectors of size [80,1] to one vector of size {800,1]