In order to get more accurate traffic information from Google Analytics, I want to exclude the traffic data that come from one special country. How to finish this setting? Thank you in advance.
You can exclude traffic based on their IP addresses using Google analytics filter. Just refer this Google's help page, http://www.google.com/support/analytics/bin/answer.py?hl=en&answer=55572
You can change the setting in google analytics filter and change delete the IP address of the country which data you don't want to show .