[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 10:48:03 +0100


Hi,

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

To reproduce please do the following:

a <- matrix()
edit(a)

change e.g. the cell value to 1 and close the GUI-based editor. edit(a) returns NA. This also happens for any dimension of the matrix as long as all cell values are NA. If at least one of the cell values is not NA it works correctly. The same behaviour I also get via "fix(x)".

I tried this by using R via the Terminal (editing via X11 and Tcl/Tk) and the Mac R-GUI app.

Here's my sessionInfo():

R version 2.14.0 (2011-10-31)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats graphics grDevices utils datasets methods base

Any ideas? Or is this an undocumented behaviour?

Best,
--Hans



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