| To: | Ahmet Turhan <att3380@garnet.acns.fsu.edu>, Ahmet Turhan <att3380@garnet.acns.fsu.edu> |
|---|---|
| Subject: | Re: How to calculate cavriance from correlation matrix |
| From: | John Fox <jfox@mcmaster.ca> |
| Date: | Mon, 25 Feb 2002 14:21:43 -0500 |
| Cc: | s-news@lists.biostat.wustl.edu |
| In-reply-to: | <Pine.A41.4.05.10202251155030.90654-100000@garnet.acns.fsu. edu> |
| References: | <2666.200.31.139.92.1014503292.squirrel@reduc.uc.edu.ve> |
At 11:57 AM 2/25/2002 -0500, Ahmet Turhan wrote: Dear Friends, How can we extract covariance matrix from correlation matrix in S-plus? Thank you any help. Dear Ahmet,If R is the correlation matrix and s the vector of standard deviations, then outer(s, s)*R will give you the covariance matrix. John |
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