1/sqrt(7) = 0.37796...
sqrt(2)/2 = 0.707...
-Chuck Harris
Tom Van Baak wrote:
The 1.4 scale factor correction worked
Nice confirmation.
The actual number is sqrt(2). Look at the definition of ADEV
(http://tf.nist.gov/images/adevfreq.gif) to see why.
Note sqrt(2) = 1.414 and 1/sqrt(7) is 0.707. The rule-of-thumb is that ADEV(tau
1
day) is 0.707 the daily drift rate; which is to say the daily drift rate is
1.414
ADEV(tau 1 day).
/tvb
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