Re: [Rd] Possible bug in edit(x) for editing matrices [tested on a Mac]

From: Hans-Jörg Bibiko <bibiko_at_eva.mpg.de>
Date: Mon, 19 Dec 2011 12:43:01 +0100

On 19 Dec 2011, at 12:22, Prof Brian Ripley wrote:

>> it seems there's a possible bug in edit(x) if x is a matrix filled with NA only.

>
> It's as documented. Hint: look at mode(a) or str(a), and check what values are accepted for a logical matrix.

Thank you very much! I wasn't aware of the circumstance that mode(matrix()) of course returns 'logical'. Maybe one could warn the user in the function "edit(x)" that if (is.matrix(x) && is.logical(x) == TRUE) that edit(x) doesn't work since my workaround was that I created a matrix of the dimension 10x20 via matrix(NA, nrow=10, ncol=20) and used the GUI data editor to fill the matrix's cells with values.

Kind regards,
--Hans



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