How to train algorithms separately and generate factors to all together? For example, train different algorithms on different train cycles:

Code:
if(TrainCycle == 1)
   algorithms = loop("Algo1", "Algo2");
else if(TrainCycle == 2)
   algorithms = loop("Algo3", "Algo4");
else
   algorithms = loop("Algo1", "Algo2", "Algo3", "Algo4");


The code above seems to not work.