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2010 Jun 29
2
POSIXlt matching bug
I came across the below mis-feature/bug using match with POSIXlt objects
(from strptime) in R 2.11.1 (though this appears to be an old issue).
> x <- as.POSIXlt(Sys.Date())
> table <- as.POSIXlt(Sys.Date()+0:5)
> length(x)
[1] 1
> x %in% table # I expect TRUE
[1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
> match(x, table) # I expect 1
[1] NA NA NA NA NA NA NA NA
2010 Jun 23
1
NAs and weighted.mean
R-developers,
In version R 2.11.0, weighted.mean was changed such that:
> weighted.mean(NA, na.rm=TRUE)
[1] 0
rather than NaN as in previous versions of R. I see a note in the NEWS
file indicates that weighted.mean was changed "so an infinite value with
zero weight does not force an NaN result."
In case the side effect of returning 0 rather than NaN in this case was
unintentional,
2007 May 25
2
File path expansion
R-Help,
I discovered a "mis-feature" is ghostscript, which is used by the bitmap
function. It seems that specifying file names in the form "~/abc.png"
rather than "/home/directory/abc.png" causes my GS to crash when I open
the bitmap device on my Linux box.
The easiest solution would seem to be to intercept any file names in the
form "~/abc.png" and replace
2008 Jul 29
3
sapply(Date, is.numeric)
FYI,
I've tried posting the below message twice to the bug tracking system,
once by email (below), and the second time 5 days later directly to the
bugs.r-project.org website. As far as I can tell, the bug tracking
system hasn't picked this up. Also it looks like the latest "incoming"
bug is dated 25 May 2008, so perhaps others are having difficulty as
well. (cc: r-bugs)
2008 Aug 07
0
sapply(Date, is.numeric) (PR#12239)
>>>>> "RobMcG" == McGehee, Robert <Robert.McGehee at geodecapital.com>
>>>>> on Tue, 29 Jul 2008 15:40:37 -0400 writes:
RobMcG> FYI,
RobMcG> I've tried posting the below message twice to the bug tracking system,
[....... r-bugs problems discussed in a separa...
2008 Aug 07
0
sapply(Date, is.numeric) (PR#12244)
On Wed, 30 Jul 2008, Martin Maechler wrote:
>>>>>> "RobMcG" == McGehee, Robert <Robert.McGehee at geodecapital.com>
>>>>>> on Tue, 29 Jul 2008 15:40:37 -0400 writes:
>
> RobMcG> FYI,
> RobMcG> I've tried posting the below message twice to the bug tracking system,
>
> [....... r-bugs problem...