def run_stats_cop(treebank_name,outdir=None,trainfile=None, testfile=None,dep_style="ud"):
if not outdir: outdir= config.exp + treebank_name
TM = TreebankTransformer(treebank_name=treebank_name, dep_style=dep_style)
#replace train and test files if they are given as arg
if trainfile: TM.trainfile = trainfile
if testfile: TM.testfile = testfile
cop_train, tot_train= TM.count_cop(TM.trainfile)
cop_test, tot_test= TM.count_cop(TM.testfile)
tot_cop = cop_train + cop_test
tot_s = tot_train + tot_test
cop_freq = (tot_cop/float(tot_s))*100
output = "%s;%s;%s\n"%(treebank_name, tot_s, cop_freq)
return output
