[R] prmatrix and print.matrix

[Göran Broström]

On 06/25/2015 11:18 PM, Therneau, Terry M., Ph.D. wrote:
> The help page for prmatrix states that it only exists for backwards compatability and
> strongly hints at using print.matrix instead.
>    However, there does not seem to be a print.matrix() function.'

I asked this very same question here 18 months ago, but got no real 
answer (except for a reference to 'write.matrix' (MASS) from David 
Winsemius). However, googling found the following:

--------------------------------
Updating packages for 1.7.0:
....
print.matrix() only exists for backwards compatibility: it is the same
as print.default().  Very likely print.matrix was used for the
right=TRUE argument that S's print.default does not have, but this is
unnecessary.  If you want the call sequence of print.matrix, use 
prmatrix instead.  Also, note that print prints the attributes of the 
matrix whereas prmatrix does not.
------------------------------
http://developer.r-project.org/170update.txt

So, my guess is that print.matrix once existed but is now silently gone. 
Use print.default.

Göran

>
> The help page for print mentions a zero.print option, but that does not appear to affect
> matrices.  This (or something like it) is what I was looking for.
>
> Am I overlooking something?
>
> Terry Therneau
>
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