Can not use other Optimizer except of PSO

[hanamthang]

I tried to select other optimizer (HHO, FFA...) by setting the flag to "True" but the experiment result in Excel file is stuck to PSO. How can we change the optimizer?

In addition, how can we identify the selected feature? Let say we run the HHO for IRIS dataset, can we get the final accuracy and selected features? And can we run this program for any regression problems?

Many thanks,
Thang