Hi, Gabor, et al.:
I'm suggesting adding "checkAttributes" to "ca", NOT to "c".
Spencer
On 8/19/2010 8:50 AM, Gabor Grothendieck wrote:
On Thu, Aug 19, 2010 at 11:43 AM, Spencer Graves
<spencer.gra...@structuremonitoring.com> wrote:
Hi, Gabor, Paul, et al.:
For classes that did not supply a "ca" method, I'd rather see the
default being to start with the corresponding "c" method followed by an
effort to preserve attributes to the maximum extent feasible. I'm not sure
the best defaults, but at the moment, I would expect that attributes like
"dim" and "dimnames" should always be dropped. The current default "c"
method preserves "names" appropriately.
What do you think about including another argument to
"checkAttributes"? I'm not sure what the options should be nor what should
be the default, but one option should throw and error if any contradiction
was found while another would take all attributes from the first argument
and ignore others.
I think ca is easier to use. It would work consistently and simply
across classes whereas fixing up c with checkAttribues is harder to
use.
--
Spencer Graves, PE, PhD
President and Chief Operating Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San José, CA 95126
ph: 408-655-4567
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
