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You can find different amplitudes, speeds, or signs of the oscillations, but if you write something like the NAO into your coordinates you may be unable to see the NAO being replaced by a substantively different pattern of variability.

The problem with dimension reduction (otherwise a very useful technique) is precisely that.

Of all the ways of organizing banking, the worst is the one we have today — Mervyn King, 25 October 2010

by Migeru (migeru at eurotrib dot com) on Fri Dec 10th, 2010 at 05:16:50 AM EST
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