Displaying 20 results from an estimated 8000 matches similar to: "var() with 0-length vector -- docs inconsistent with result"
2018 Nov 26
1
Suggestion for `glm.fit`
Dear sirs,
One gets unexpected `residuals` if one is not aware of the meaning of
weights when a weight is set to zero and the outcome is one in the
`binomial` family in a call to `glm.fit`. The reason is the following
line from `binomial()$initialize`
> y[weights == 0] <- 0
Here is an example:
pval <- seq(.05, .95, length.out = 25)
X <- log(pval / (1 - pval)) - 2
Y <- c(
FALSE,
2018 Sep 25
0
Fwd: Bug report: cbind with numeric and raw gives incorrect result
For what it's worth the following patch fixes that particular problem on my system.? I have not checked very carefully to make sure this does not cause other problems, but at a high level it seems to make sense.? In this particular part of the code I believe `mode` is taken to be the highest type of "column" encountered by `ctype` and based on conditionals it can (I think) be up to
2018 Sep 19
2
A different error in sample()
This may be a doc error or a coding bug.
The help page for sample says:
"Non-integer positive numerical values of n or x will be truncated to
the next smallest integer, which has to be no larger than
.Machine$integer.max."
This is not true:
> table(sample(2.5, 1000000, replace = TRUE))
1 2 3
399933 399716 200351
We shouldn't have those 3's if
2018 Sep 24
3
Fwd: Bug report: cbind with numeric and raw gives incorrect result
Hi there,
using cbind with a numeric and raw argument produces an incorrect result.
I've posted some details below,
kind regards,
Mike.
e.g.
> cbind(0, as.raw(0))
[,1] [,2]
[1,] 0 6.950136e-310
A longer example shows that the result is not a rounding error, is not
consistent, and repeated applications get different results.
> cbind(0, as.raw(1:10))
2018 Sep 25
1
Fwd: Bug report: cbind with numeric and raw gives incorrect result
Thanks Brodie, that's some nice detective work.
If someone wanted to grant me access to Bugzilla, I'll be happy to post the
bug and patch there (with your permission Brodie?) and help this bug get
fixed.
Mike.
On Tue., 25 Sep. 2018, 10:53 pm brodie gaslam, <brodie.gaslam at yahoo.com>
wrote:
>
>
> For what it's worth the following patch fixes that particular problem
2013 Jun 27
1
'modifyList' drops (not adds) NULL components
Dear list,
Utils::modifyList() drops NULL components in its second argument, instead of adding them to the first argument. Compare:
> modifyList(x=list(A=1), val=list(B=2, C=3))
$A
[1] 1
$B
[1] 2
$C
[1] 3
> modifyList(x=list(A=1), val=list(B=NULL, C=3))
$A
[1] 1
$C
[1] 3
To me this seems inconsistent with the documentation ("Elements in 'val' which are missing from
2018 Sep 06
0
svg ignores cex.axis in R3.5.1 on macOS
I think this needs to be taken off the bug repository and continued here. By now it seems pretty clear that this is not an R bug, but a local problem on Spencer's machine, likely connected to font configurations.
I poked around a bit on the three Macs that I can access, and found that fc-match does different things, including throwing warnings, hanging and even crashing my old MB Air...
One
2018 Sep 19
0
A different error in sample()
I believe the word "truncated" is causing the confusion. 3 is "the next
smallest integer" following 2.5. But it is not the truncation done by
trunc(). Rewording to "rounding the next smallest integer" would get rid of
that confusion imho.
Cheers
Joris
On Wed, Sep 19, 2018 at 7:57 PM Duncan Murdoch <murdoch.duncan at gmail.com>
wrote:
> This may be a doc
2018 Sep 05
2
svg ignores cex.axis in R3.5.1 on macOS
Seems ok on my system. Axis label size changes when cex.axis does.
## tested in the middle of another long session, so many additional packages are attached, including some personal packages not available elsewhere
> sessionInfo()
R version 3.5.1 (2018-07-02)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS High Sierra 10.13.6
Matrix products: default
BLAS:
2018 Sep 06
1
svg ignores cex.axis in R3.5.1 on macOS
On 06/09/2018 10:47, peter dalgaard wrote:
> I think this needs to be taken off the bug repository and continued here. By now it seems pretty clear that this is not an R bug, but a local problem on Spencer's machine, likely connected to font configurations.
Or even on R-sig-Mac.
> I poked around a bit on the three Macs that I can access, and found that fc-match does different things,
2003 Jul 21
1
Inconsistent handling of character NA?
[R 1.7.1 on Windows XP Pro]
Since R allows missing values for character variables, why
are NA's not propagated by character manipulation functions?
For example:
> temp <- c("a", NA)
> temp
[1] "a" NA
> is.na(temp)
[1] FALSE TRUE
> paste(temp[1], temp[2])
[1] "a NA"
> substr(temp, 1, 1)
[1] "a" "N"
>
2018 Aug 31
2
svg ignores cex.axis in R3.5.1 on macOS
????? Plots produced using svg in R 3.5.1 under macOS 10.13.6 ignores
cex.axis=2.? Consider the following:
> plot(1:2, cex.axis=2)
> svg('svg_ignores_cex.axis.svg')
> plot(1:2, cex.axis=2)
> dev.off()
> sessionInfo()
R version 3.5.1 (2018-07-02)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS High Sierra 10.13.6
Matrix products: default
BLAS:
2018 Jul 04
1
unexpected behavior of unzip with list=T and unzip=/usr/bin/unzip
Hello,
I encountered some unexpected behavior of unzip when using info-zip's unzip
instead of R's internal program. Specifically, unzip("file.zip", list=TRUE,
unzip=/usr/bin/unzip) produces incorrect output if the zip archive has
filenames with spaces, and results in an error if the zip archive includes
an archive comment or file comments.
Here is some code to reproduce along
2003 Jan 13
2
Bug in boxplot(..., add=TRUE) ?
R 1.6.1 on Windows NT4:
The boxplot() function appears to draw its own tick marks
and axis values even when called with add=TRUE. As a toy
example, try
x <- rnorm(100)
f <- factor(rep(1:4, each=25))
plot(c(0,4), c(-3,3), type="n", xaxt="n", yaxt="n")
boxplot(x ~ f, add=TRUE)
My expectation is that a high-level plotting function will
not mess with the axes
2002 Apr 23
2
Bug in read.table() (PR#1477)
The following command,
temp <- read.table("c:/rfr/r/test.txt")
reads the text file "test.txt", which contains the following lines:
21437
21438
21419-2
21420-2
21421-2
21422-2
and produces the following result:
> temp
V1
1 21437+0i
2 21438+0i
3 0+0i
4 0+0i
5 0+0i
6 0+0i
>
These "numbers" are actually sample ID's, and I
2003 Jul 21
2
Bug in file.copy: overwrite=FALSE ignored (PR#3529)
I am using R 1.7.1 on Windows XP Pro.
The 'overwrite=FALSE' argument appears to be ignored in
file.copy():
> file.exists(c("file1.txt", "file2.txt"))
[1] TRUE TRUE
> file.copy(from="file2.txt", to="file1.txt", overwrite=FALSE)
[1] TRUE
>
and sure enough, file1.txt has been overwritten.
Rich Raubertas
Biometrics Research, RY33-300
Merck
2004 Aug 16
1
Dotplot with nested factors
I am using the dotplot function from the lattice package to
display a quantitative variable versus two factors, say 'a' and
'b'. The levels of 'a' are nested within levels of 'b'. The
issue is that dotplot includes all the levels of 'a' in each panel
(conditioning on 'b'), even though many are empty in any given
panel. A toy example is
dat
2003 Aug 15
6
plot.lm mislabels points with na.exclude (PR#3750)
R 1.7.1 on Windows XP
The "normal Q-Q plot" produced by plot.lm() mislabels points
when the model is fitted using na.action=na.exclude. Example:
x <- 1:50
y <- x + rnorm(50)
y[c(5,10,15)] <- NA # insert some NA's
y[40] <- 50 # add an outlier
plot(lm(y ~ x, na.action=na.omit)) # outlier correctly labeled in all
# four plots
2013 Oct 21
0
lapply(ts(1:2), length) inconsistent answers
Hello, All:
I'm getting different answers from "lapply(ts(1:2), length)",
depending on what is attached, with nothing obviously masked.
1. Am I correct that the answer to "lapply(ts(1:2),
length)" should be a list of length 2 consisting of "int 1" twice? This
is what I get from R 3.0.2 with nothing else attached. If I've attached
2018 Sep 04
2
[FORGED] Re: plotmath degree symbol
Hi
Thanks for that, but I still cannot confirm on ...
sudo docker run -v $(pwd):/home/work/ -w /home/work --rm -ti
rocker/r-ver:3.5.1
Could you please read the comments within the "Cairo Fonts" section of
the ?X11 help page, in case that offers some explanation.
Paul
On 29/08/18 02:15, Martin M?ller Skarbiniks Pedersen wrote:
> On Fri, 24 Aug 2018 at 19:53, Edzer Pebesma
>