On 9/18/2012 10:46 AM, Paul Gilbert wrote:
On 12-09-18 01:30 PM, Sebastian P. Luque wrote:
On Tue, 18 Sep 2012 11:40:26 -0400,
Paul Gilbert <pgilbert...@gmail.com> wrote:
I am doing some comparison for which I load both RMySQL and
RPostgreSQL from my own packages TSMySQL and TSPostgreSQL and I am
getting the following warning building a vignette. I think with
package namespaces / S4 definitions it is a bit difficult to generate
a self contained example, at least I have not yet managed to do that,
but I would appreciate any suggestions about what needs to be done.
Loading required package: TSPostgreSQL Loading required package:
RPostgreSQL Warning in .simpleDuplicateClass(def, prev) : A
specification for class "dbObjectId" in package 'RPostgreSQL' seems
equivalent to one from package 'RMySQL' and is not turning on
duplicate class definitions for this class
I've seen this with a vignette using both the maptools and trip
packages, but it was just a warning and the vignette built just fine.
Yes, it is just a warning, and the vignette builds fine. It also looks
like there is probably a simple fix to remove the problem that causes
the warning, since that is what the warning suggests. However, as
Spencer pointed out, isolating a simple example is not so easy.
CRAN policy, at least as of August 30, 2012, was to reject
packages that generate either Warnings or Notes. Thus, "just a warning"
is a show-stopper if you plan to submit the package to CRAN. There is
now a "CRAN" function in the development version of "fda" on R-Forge
that we use to reduce the test time with "R CMD check --as-cran". There
was as thread on the R-Devel list, subject: "if(--as-cran)?", which I
thought mentioned a similar function in a development version of R.
Unfortunately, I can't find it now.
Spencer
Paul
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