public void toString()
{
string str = "";
for (int i = 0; i < network.Count; i++)
{
str += string.Format("Layer {0} \n", i);
for (int j= 0; j < network[i].Count; j++)
{
str += string.Format(" Neuron {0} :\n {1}", j, network[i][j].toString(false));
}
}
Debug.Log(str);
}