Article View: sci.math.stat
Article #612expected value of inverse sample covariance?
From: Behzad M Shahshahani
Date: Thu, 01 Oct 1992 20:19
Date: Thu, 01 Oct 1992 20:19
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815 bytes
I have been trying to find the expected value of inverse of S, the
unbiased covariance estimte. Does anyone know what this expected value is,
or any references??
T
E{inverse(S)} = ??, where S=1/n-1 (sum((xi-xbar)(xi-xbar) )
Thanks in advance.
-Behzad Shahshahani
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Newsgroups: sci.math.stat Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!sgiblab!spool.mu.edu!news.nd.edu!mentor.cc.purdue.edu!noose.ecn.purdue.edu!ec.ecn.purdue.edu!behzad From: behzad@ec.ecn.purdue.edu (Behzad M Shahshahani) Subject: expected value of inverse sample covariance? Message-ID: <1992Oct1.201906.14311@noose.ecn.purdue.edu> Sender: B.M.Shahshahani Organization: Purdue University Engineering Computer Network Date: Thu, 1 Oct 1992 20:19:06 GMT Lines: 10