def evaluate_back_transformation_accuracy(treebank_name,outdir=None):
if not outdir: outdir= config.exp + treebank_name + "/"
TM = TreebankTransformer(treebank_name=treebank_name)
TM.transform_detransform_trainfile()
train_gold = TM.trainfile
train_backtransf = TM.back_transf
accuracy_of_back_transf = malteval.accuracy(train_gold,train_backtransf)[0]
accuracy_of_back_transf = str(float(accuracy_of_back_transf)*100)
output = "%s;%s\n"%(treebank_name,accuracy_of_back_transf)
return output
