def main(sign, label):
"""
show group sizes in h5files
"""
files = h5files(os.getcwd())
n_arti_total = 0
for fname in files:
man = Combinato(fname, sign, label)
if not man.initialized:
continue
groups = man.get_groups(times=False, spikes=False)
if 0 in groups.keys():
n_unassigned = len(groups[0])
if -1 in groups.keys():
n_arti = len(groups[-1])
else:
n_arti = 0
print('{} {} groups, {} artifacts'.
format(os.path.basename(fname), len(groups), n_arti))
n_arti_total += n_arti
return n_arti_total
