The Panda Algorithm Tests: Search Engine Watch Analyzes Panda Behavior Across Hundreds of Sites

Can you be affected by Panda in various degrees?
What affects the amount of thin content that is condoned?
What is the best way to recover from Panda?
SEW run some very interesting tests across a few hundred web sites to find out what affected and triggered the Google Panda and how to best recover from it.
Their conclusions include:
1) Panda uses a steep threshold. Pages are either affected or not.
2) The threshold isn’t the same for each domain. Links seem to cause some difference.
3) Almost all keywords on an affected page drop in ranking.
4) Entire sections of pages are affected. Drops for a single page are unlikely to be caused by Panda.
5) You can recover from Panda by removing low quality pages from the index (canonical, noindex, etc.).