Displaying 20 results from an estimated 2000 matches similar to: "Bug in pacf -- Proposed patch"
2007 Nov 23
1
Bug in pacf -- Proposed patch (PR#10455)
Dear all,
following the thread
http://tolstoy.newcastle.edu.au/R/e2/devel/07/09/4338.html
regarding the bug in the partial autocorrelation function for
multivariate time series.
I have prepared a web page with patches and relevant information.
http://www2.stat.unibo.it/giannerini/R/pacf.htm
Please do not hesitate to contact me for further clarifications
regards
Simone
--
2020 May 18
1
parRapply and parCapply return a list in corner cases
According to ?parCapply:
parRapply and parCapply always return a vector.
This appears not to be the case in the following minimal reproducible example:
> library(parallel)
> nslaves <- 2
> cl <- makeCluster(nslaves)
> X <- matrix(2,nrow=3,ncol=4)
> X <- rbind(c(1,1,0,1),X)
> tv <- parCapply(cl,X,FUN=function(x){
+
2008 Jun 05
2
qf with infinite df
Dear all,
I found the following behaviour
> rf(5,Inf,Inf)
[1] 1 1 1 1 1
but
> qf(0.1,Inf,Inf)
[1] NaN
Warning messages:
1: In qf(0.1, Inf, Inf) : value out of range in 'lgamma'
2: In qf(p, df1, df2, lower.tail, log.p) : NaNs produced
incidentally,
> pf(1.00000000000001,Inf,Inf)
[1] 1
> pf(1.0000000000000001,Inf,Inf)
[1] 0.5
Is this the expected behaviour?
Thanks
2009 Dec 10
1
switch() called with just the EXPR argument causes R to hang (PR#14124)
Dear all,
switch() called with just the EXPR argument causes R to hang so that the
only way to stop it is to kill R.
Reproducible example:
> switch(EXPR="a")
the internal C subroutine behind switch is do_switch located in
R/src/main/builtin.c
For convenience I reproduce it below.
*****************************************************************************
SEXP attribute_hidden
2008 Dec 26
1
/bin/windows/base/rpatched.html page out of date
Dear all,
it looks like that something is wrong with the
/bin/windows/base/rpatched.html page as it seems pointing to the
2.8.1rc version.
Also, I do not know if it is relevant but notice the dates of the
following files on
ftp://ftp.stat.math.ethz.ch/Software/CRAN/bin/windows/base/
R-2.8.1pat-win32.exe 31963 KB 22/12/2008 16.15.00
R-2.8.1rc-win32.exe 31991 KB 25/12/2008 9.30.00
thank
2009 Mar 30
1
quantile and IQR do not check for numeric input (PR#13631)
This report follows the post
http://tolstoy.newcastle.edu.au/R/e6/devel/09/03/0760.html
where it is shown that quantile() and IQR() do not work as documented.
In fact they do not check for numeric input even if the documentation says =
:
?quantile
x numeric vectors whose sample quantiles are wanted. Missing
values are ignored.
?IQR
x a numeric vector.
> quantile(factor(1:9))
0%
2009 Jan 08
1
legend() in a multiple figure environment
Dear all,
there seems to be a problem with displayed legends when a multiple
figure environment is used, see the following example:
par(mfrow=c(1,2))
curve(dnorm,col=4,from=-4,to=4);
legend(-4,0.3,legend="curve",lty=1,col=4)
legend(-4,0.2,legend="curve",lty=1,col=4)
On my machines the first time the command legend() is issued the
legend box stretches over the curve.
2009 Nov 20
1
make fails on R r50499 ( openSuSE 11.0 x86-64)
Dear all,
I encountered a problem when compiling the source of R patched 2.10.0
r50499 (19-11-2009)
linked to ACML single threaded (4.2.0 or 4.3.0)
OS: openSuSE 11.0 x86-64
make fails when it comes to installing mgcv with the following
[snip]
** R
** inst
** preparing package for lazy loading
Error in loadNamespace(i[[1L]], c(lib.loc, .libPaths())) :
non esiste un pacchetto chiamato
2012 Dec 29
1
bug in plot.ts?
Dear all,
I think I have found a buglet in plot.ts
plot.ts(x=1,type="n") # correct: does not show the plot
plot.ts(x=1,y=1,type="n") # not correct: does show the plot
I did not investigate the problem in depth but it could be related to
the switch xy.labels, in fact
plot.ts(x=1,y=1,type="n",xy.labels=TRUE) # does show the plot
2016 Apr 05
0
Under Windows, Rgui and Rterm crash if one tries to close the graphic device while identify or locator are running
Thanks, I'll track this down.
Duncan Murdoch
On 05/04/2016 9:35 AM, Simone Giannerini wrote:
> minimal reproducible example
>
> plot(1,1)
> identify(1,1) # or locator()
>
> now, trying to close the window by clicking on the cross of the upper
> right corner causes Rgui (and Rterm) to crash.
>
> I see the same behaviour on 2 different Windows PC (one with Win 8.1
2010 Oct 03
1
tabulate() does not check for input bounds
Dear all,
it looks like that tabulate() does not check for the bounds of the input.
Reproducible example:
> b <- 1:2
> tabulate(b[1:100])
[1] 1 1
> R.version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status Patched
major 2
minor 11.1
year 2010
month 09
day
2006 Mar 06
2
Running R on dual/quad Opteron machines
Dear all,
I am managing a departmental purchase of an Opteron based
workstation/server for scientific computing on which we will be
running R.
The environment will probably be either Unix/Linux or Solaris and the
amount of RAM will be 8-16Gb, depending on the number of processors.
My main concerns are the following:
1. How much does R benefit from passing from one processor to
two/four
2016 Apr 05
0
Under Windows, Rgui and Rterm crash if one tries to close the graphic device while identify or locator are running
On 05/04/2016 11:56 AM, Henrik Bengtsson wrote:
> If of any help,
>
> I can reproduce this (on Windows 7) back to at least R 3.0.3 but it's
> not there in R 3.0.0. (I have *not* checked with R 3.0.1 and 3.0.2
> which I don't have installed).
That doesn't necessarily mean that 3.0.0 was fine. It's a segfault (I'd
guess some memory being accessed after being
2007 Sep 10
1
partial correlation function for multivariate time series
Dear all,
I found the following behaviour with pacf() in the multivariate case,
set.seed(10)
x <- rnorm(1000,sd=10000)
y <- rnorm(1000,sd=1)
pacf(ts(cbind(x,y)),plot=FALSE,lag.max=10)
Partial autocorrelations of series 'cbind(x, y)', by lag
, , x
x y
0.047 ( 1) 0.000 ( -1)
0.011 ( 2) 0.000 ( -2)
0.005 ( 3) 0.000 ( -3)
0.013 ( 4)
2016 Aug 19
0
summary.default rounding on numeric seems inconsistent with other R behaviors
John,
I had raised the matter ten years ago, and I was told that the topic was
already very^3 old
https://stat.ethz.ch/pipermail/r-devel/2006-September/042684.html
there is some discussion on its origin and also a declaration of intents to
change the default behaviour, which, unfortunately, remained a declaration.
I agree that R could do better here, let's hope in less than ten years
2016 Apr 05
2
Under Windows, Rgui and Rterm crash if one tries to close the graphic device while identify or locator are running
minimal reproducible example
plot(1,1)
identify(1,1) # or locator()
now, trying to close the window by clicking on the cross of the upper
right corner causes Rgui (and Rterm) to crash.
I see the same behaviour on 2 different Windows PC (one with Win 8.1
and one with Win 10).
I did not see the problem in linux (see below)
WINDOWS **************
> sessionInfo()
R version 3.3.0 beta
2023 Sep 23
2
NROW and NCOL on NULL
Dear list,
I do not know what would be the 'correct' answer to the following but
I think that they should return the same value to avoid potential
problems and hard to debug errors.
Regards,
Simone
---------------------------------------
> NCOL(NULL)
[1] 1
> NROW(NULL)
[1] 0
> sessionInfo()
R version 4.3.1 RC (2023-06-08 r84523 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
2016 Apr 05
2
Under Windows, Rgui and Rterm crash if one tries to close the graphic device while identify or locator are running
If of any help,
I can reproduce this (on Windows 7) back to at least R 3.0.3 but it's
not there in R 3.0.0. (I have *not* checked with R 3.0.1 and 3.0.2
which I don't have installed).
/Henrik
On Tue, Apr 5, 2016 at 8:23 AM, Duncan Murdoch <murdoch.duncan at gmail.com> wrote:
> Thanks, I'll track this down.
>
> Duncan Murdoch
>
>
> On 05/04/2016 9:35 AM,
2009 Mar 05
1
quantile(), IQR() and median() for factors
Dear all,
from the help page of quantile:
"x ??? numeric vectors whose sample quantiles are wanted. Missing
values are ignored."
from the help page of IQR:
"x ??? a numeric vector."
as a matter of facts it seems that both quantile() and IQR() do not
check for the presence of a numeric input.
See the following:
set.seed(11)
x <- rbinom(n=11,size=2,prob=.5)
x <-
2006 Oct 02
1
CCF and ACF
Dear all,
given two numeric vectors x and y, the ACF(x) at lag k is
cor(x(t),x(t+k)) while the CCF(x,y) at lag k is cor(x(t),y(t-k)). See
below for a simple example.
> set.seed(1)
> x <- rnorm(10)
> y <- rnorm(10)
> x
[1] -0.6264538 0.1836433 -0.8356286 1.5952808 0.3295078 -0.8204684
0.4874291 0.7383247 0.5757814 -0.3053884
> y
[1] 1.51178117 0.38984324