Currently
system.file(package="no such pkg","no","such","file")
silently returns the empty string, "", if said file doesn't
exist. This forces the caller to check for "" or risk getting
a mysterious error message from a function requiring a file
name. E.g.,
> read.dcf(system.file(package="
Hi,
My package contains the following foo() generic and methods (simplified
version):
setGeneric("foo", signature="x", function(x, y=NA) standardGeneric("foo"))
setMethod("foo", "ANY", function(x, y=NA) list(x, y))
setMethod("foo", "character", function(x, y=NA) unlist(callNextMethod()))
Aha, it works if I do
setGeneric("order", signature="...")
However the problem with that is that it generates a warning which I
cannot suppress on install:
Creating a generic for "order" in package "AHLCalendar"
(the supplied definition differs from and overrides the implicit
generic in pa
Sklyar, Oleg (London) wrote:
> Ha, defined xtfrm for TimeDate, works instantly (xtfrm is already a
> method). However, it won't be taken up by order as it is not in the
> imported namespace, so order falls back to xtfrm.default.
>
By "method" you mean "generic"? xtfrm is an S3 generic. I'm not
In fact it all comes back to 'rank', which uses 'order(x[!nas])'
internally. Surprisingly one does not get an infinite recursion: rank ->
order -> xtfrm -> rank -> ...
This is obviously only one of possible outcomes, yet it seems to be
happening. Previous implementation of order did not have a ref
Dear Ulrich,
I'd frankly forgotten about this, but can't see an argument for not making
this (or a similar) change.
Thanks for reviving the issue.
John
--
John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
web: socserv.mcmaster
Ha, defined xtfrm for TimeDate, works instantly (xtfrm is already a
method). However, it won't be taken up by order as it is not in the
imported namespace, so order falls back to xtfrm.default.
Moreover, defining order (which is not a method unfortunately, *any
chance of changing this*?):
setGene
Thanks for a quick reply, I was thinking of [ methods myself, but there
are so many of them. I only tested [(x=TimeDate,i=TimeDate,j=missing),
which is a completely non-standard one. It did not seem to have any
effect though.
I was thinking of writing the 'order' method and will experiment with
g
No definitive answers, but here are a few observations.
In the call to order() code, I notice that you have dropped into the branch
if (any(unlist(lapply(z, is.object
where the alternative in your case would seem to have been going
directly to the internal code.
You can consider a method
--=-hiYzUeWcRJ/+kx41aPIZ
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 8bit
Hi,
on March 10 I filed a wishlist bug report asking for the inclusion of
some changes to factanal() and the associated print method. The changes
were originally proposed by John Fox in 2005; they m
Full_Name: Mark Difford
Version: R version 2.7.2 Patched (2008-08-26 r46442)
OS: Windows -- Vista
Submission from: (NULL) (198.54.202.146)
legend(graphics) does not reset xpd to its pre-call state when it has finished
drawing the legend.
## Ex.
par(xpd = FALSE)
plot(1)
legend("top", legend="Tops
Hello everybody,
it looks like the presense of some (do know know which) S4 methods for a
given S4 class degrades the performance of xtfrm (used in 'order' in new
R-devel) by a factor of millions. This is for classes that ARE derived
from numeric directly and thus should be quite trivial to conver
On Tue, Sep 9, 2008 at 2:30 AM, <[EMAIL PROTECTED]> wrote:
> Package 'signal' is not the responsibility of the R developers, so you
> need to follow the FAQ and report this to the maintainer, rather than
> clog up R-bgs with an inappopriate report.
>
> You might find that R's own function filter()
Package 'signal' is not the responsibility of the R developers, so you
need to follow the FAQ and report this to the maintainer, rather than
clog up R-bgs with an inappopriate report.
You might find that R's own function filter() is better written.
The FAQ also asks you not to report on long ob
Full_Name: Jeff Schenck
Version: 2.6.2 (signal v. 0.5)
OS: Windows XP
Submission from: (NULL) (128.107.248.220)
The "filter" function in the package "signal" does not properly handle recursive
filters with only two feedback taps. I looked at the source code in filter.R.
There is a line that say
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