':key: èŸåºæš¡åæç»ç»æ°æ®ææ ç­Ÿçç»æ,çšå°thetaåŒ'

def save_tag(self, file_name):

    self.calculate_theta()
    with open(file_name, 'w', encoding='utf-8') as f_tag:
        for m in range(self.M):
            f_tag.write(('%s DCTB %s\n' % (self.artids_list[m], '    '.join([str(item) for item in self.theta[m]]))))
    return
