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
def main(fname_data, fname_sorting, sign, outfname, drop_artifacts=False):
    """
    read groups from sorting for conversion
    """
    man = Combinato(fname_data, sign, fname_sorting)
    # man.set_sign_times_spikes(sign)
    # res = man.init_sorting(fname_sorting)
    fn1 = os.path.basename(fname_data)
    # fn2 = os.path.basename(fname_sorting)

    joined = man.get_groups_joined()
    ch_name = man.header['AcqEntName']
    # ugly: this works only if you use the CSCxy convention!
    go_on = False
    try:
        ch_num = int(fn1[8:-3])
        go_on = True
    except ValueError as error:
        print(error)
        print('Cannot find channel number in' ' filename {}'.format(fn1))
        info_row = None
    if go_on:
        info_row = [ch_num, ch_name]
        info_dict = convert_to_mat(joined, outfname, drop_artifacts)
        info_row += [info_dict[GROUP_ART], info_dict[GROUP_NOCLASS]]
        del info_dict[GROUP_ART]
        del info_dict[GROUP_NOCLASS]
        for key in sorted(info_dict.keys()):
            info_row.append(info_dict[key])
    del man
    return info_row