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change class from "structure"

To: "S-News List" <s-news@lists.biostat.wustl.edu>
Subject: change class from "structure"
From: John Fennick <jhf2@adelphia.net>
Date: Sat, 15 May 2004 10:32:17 -0400
Thanks to Prof. Ripley,

the fix is: attr(The matrix with class 'structure', "na.message") <- NULL

john
******************************
original message:


Hi S-users,

I had a matrix with many NAs scattered through it.
I selected some desired columns to a new matrix, then did an na.omit to remove NA'd rows.

The result was an object of class "structure" which was assessable in command line calls, and appeared upon the call ls(), but was not shown in object explorer nor in the File menu. This was irritating because I could not create an "edit" display as done by clicking in the object explorer.

Is there a simple way to convert the "structure" back to a matrix (as.matrix did not work)? I resorted to copying into word, etc etc, and then back to S with read.table. Not nice.

john

John Fennick
jhf2@adelphia.net
alt: j.fennick@ieee.org
Tel: 603.526.4023
134 Brookside Drive
New London, NH 03257
USA


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