Introduce the transfert function and training method to newff from an array

I would to write a construction algorithm of neural networks, i used newff function in imbricated for to test different numbers of layers, and different numbers of neurons in each layer, and for each architecture, i want to try many transfer functions and learn methods so i thought to read them from tow tables using "for", but newff needs that the name of each one must be written between quotes, so how can i do this?