diff --git a/arg_fit.py b/arg_fit.py
index d2445fa..d4ce1fd 100644
--- a/arg_fit.py
+++ b/arg_fit.py
@@ -133,4 +133,5 @@ def main():
     print('tc_tcc:'+str(params[0])+'\ntc_tcfl:'+str(params[1])+'\ntc_tctl:'+str(params[2]))
 
 if __name__== "__main__" :
+    threshold＝250
     main()
\ No newline at end of file