ac/dc file doesn't exist

[alen-1998]

when execute "run val_autobag_ray “ , it says,ac/dc file doesn't exist.When the following changes are made, it should work. This may be because ngspice has updated some functionality. TwoStageClass.py:

ac_fname = os.path.join(output_path, 'ac.csv.data')
dc_fname = os.path.join(output_path, 'dc.csv.data')
......
ac_raw_outputs = np.genfromtxt(ac_fname, skip_header=0)
dc_raw_outputs = np.genfromtxt(dc_fname, skip_header=0)