Displaying 20 results from an estimated 1300 matches similar to: "unexpected (?) behavior of sort=TRUE in merge function"
2009 Sep 29
3
Probability of data values form DENSITY function
Hello,
Could someone help me please and to tell how to get the probability from empirical DENSITY (not parametric) for each data value (R function).
For example, for normal distribution there is such a function like:
“dnorm(q, mean = 0, sd = 1, lower.tail = TRUE, log.p = FALSE)”
I need the same function only for the empirical DENSITY function (which does not correspond to any typical
2011 Sep 27
2
Pearson chi-square test
Dear all,
I have some trouble understanding the chisq.test function.
Take the following example:
set.seed(1)
A <- cut(runif(100),c(0.0, 0.35, 0.50, 0.65, 1.00), labels=FALSE)
B <- cut(runif(100),c(0.0, 0.25, 0.40, 0.75, 1.00), labels=FALSE)
C <- cut(runif(100),c(0.0, 0.25, 0.50, 0.80, 1.00), labels=FALSE)
x <- table(A,B)
y <- table(A,C)
When I calculate the test statistic by hand
2009 Nov 16
3
R crash with intToUtf8 on huge vectors (PR#14068)
Full_Name: George Russell
Version: 2.10.0
OS: Windows XP Professional Version 2002 Service Pack 2
Submission from: (NULL) (217.111.3.131)
Typing the following command into R --vanilla causes R to crash:
k <- intToUtf8(rep(1e3,1e7))
This is the output of sessionInfo():
R version 2.10.0 (2009-10-26)
i386-pc-mingw32
locale:
[1] LC_COLLATE=German_Germany.1252 LC_CTYPE=German_Germany.1252
2009 Oct 13
2
Sweave output encoding in R-2.10.0beta on Windows (Rgui <-> Rterm)
Dear developers,
I have come across a (somewhat strange) change in the encoding of Sweave
output from R-2.9.2pat to R-2.10.0beta (apparently specific to Rgui) on
Windows installations. Of course, the NEWS file contains quite a few
changes concerning encoding, but I was not able to locate an entry which
explains the observed behaviour. I am not very familiar with
encodings/locales/codepages,
2017 Sep 02
6
Strange lazy evaluation of default arguments
Dear R developers,
sessionInfo() below
Please have a look at the following two versions of the same function:
1. Intended behavior:
> Su1 = function(u=100, l=u, mu=0.53, sigma2=4.3^2)
+ {
+ print(c(u, l, mu)) # here, l is set to u?s value
+ u = u/sqrt(sigma2)
+ l = l/sqrt(sigma2)
+ mu = mu/sqrt(sigma2)
+ print(c(u, l, mu))
+ }
>
> Su1()
[1] 100.00 100.00 0.53
[1]
2011 Apr 21
3
R CMD Sweave versus Sweave() on Windows
Dear list subscriber,
I am quite puzzled by the behaviour of processing Sweave files within an R session, i.e.
Sweave("foo.Rnw") versus R CMD Sweave foo.Rnw
In the former the environmental variable 'SWEAVE_STYLEPATH_DEFAULT = TRUE' is obeyed (this is set in etc/Renviron.site as well as under the users home directory in .Renviron). That is the hard-coded path to Sweave.sty is
2009 Jan 30
1
Methods not loaded in R-Devel vs 2.8.1
Dear list-member,
I am currently developing a package with S4 classes. The NAMESPACE and DESCRIPTION is printed below. Within this package I have set a method "residuals" for two classes. In version 2.8.1 these two are reported whereas in R-Devel (2009-01-28 r47766). What have I missed? What has changed and how can I rectify the issue? Your help and pointers are welcome.
For 2.8.1:
2010 Feb 09
3
Confusing error message for [[.factor (PR#14209)
Full_Name: George Russell
Version: 2.10.0 and 2.11.0 Under development (unstable) (2010-02-08 r51108)
OS: Windows
Submission from: (NULL) (217.111.3.131)
> c("a","b")[[c(TRUE,FALSE)]]
Error in `[[.default`(factor(c("a", "b")), c(TRUE, FALSE)) :
recursive indexing failed at level 1
I find this error message confusing, though after reading the HELP
2009 Dec 07
3
Crash with Unicode and sub (PR#14114)
Full_Name: George Russell
Version: 2.10.0
OS: Windows XP Version 2002 SP 2
Submission from: (NULL) (217.111.3.131)
The following typed into R --vanilla induces a crash:
-- cut here --
gctorture()
u <- intToUtf8(c(rep(1e3,1e2),32,c(rep(1e3,1e2))))
v <- rep(u,1e2)
v <- sub(" ","",v)
v %in% ""
-- cut here --
sessionInfo() says:
-- cut here --
R version
2006 Oct 27
2
all.names() and all.vars(): sorting order of functions' return vector
Dear list-subscriber,
in the process of writing a general code snippet to extract coefficients
in an expression (in the example below: 0.5 and -0.7), I stumbled over
the following peculiar (at least peculiar to me:-) ) sorting behaviour
of the function all.names():
> expr1 <- expression(x3 = 0.5 * x1 - 0.7 * x2)
> all.names(expr1)
[1] "-" "*" "x1"
2009 Dec 29
1
problem reading from serial connection since 2.10.0
Dear list,
I have a balance connected to the serial port of a windows machine ("COM1") and I read the text
output of the balance with
scan("COM1", what="character", sep="\n", n=1)
after calling the previous line I press the print key on the balance which triggers sending one line
of text to the serial connection and with R 2.9.2 I get something like
Read
2015 Nov 19
5
[RFC] Introducing a vector reduction add instruction.
After some attempt to implement reduce-add in LLVM, I found out a
easier way to detect reduce-add without introducing new IR operations.
The basic idea is annotating phi node instead of add (so that it is
easier to handle other reduction operations). In PHINode class, we can
add a flag indicating if the phi node is a reduction one (the flag can
be set in loop vectorizer for vectorized phi nodes).
2011 Jul 24
4
inline/Rcpp: Problem with space in path under Windows
I am trying to run inline/Rcpp under Windows 64. The RTools are installed on
a spaceless path D:\rtools.
Inlining pure c-code works perfectly. When I try the sample code for cpp in
the cxx Documentation, I get:
x86_64-w64-mingw32-g++.exe: C:/Program: No such file or directory
The path to the compiler is correct. Obviously there is some problem with
the space in C:/Program (Files).
Any ideas
2010 Feb 19
3
Rubbish values written with zero-length vectors (PR#14217)
Full_Name: George Russell
Version: 2.10.0, 2.11.0 (2009-12-13 r50716)
OS: Windows
Submission from: (NULL) (217.111.3.131)
R trace:
-- cut here --
> v <- integer(0)
> v[[1]] <- v
> v
[1] 20522144
> v <- numeric(0)
> v[[1]] <- v
> v
[1] 4.254131e-314
> sessionInfo()
R version 2.10.0 (2009-10-26)
i386-pc-mingw32
locale:
[1] LC_COLLATE=German_Germany.1252
2008 Dec 18
2
lme4 error after Matrix update
Dear all,
after recently updating my R-packages I am unable to work with lme4,
since it does not load. What I get is this:
Error in inDL(x, as.logical(local), as.logical(now), ...) :
function 'cholmod_l_start' not provided by package 'Matrix'
In addition: Warning messages:
1: package 'lme4' was built under R version 2.8.1
2: package 'lattice' was built under R
2007 Jun 15
2
Problem with workspace loading after languageR use
Hello R,
To analyze multi-level data, I started learning and using lmer. So far
so wonderful. I then found some useful functions in package languageR.
But then the following problem ocurred: Whenever I load and use the
languageR package, then save the workspace - or quit R with saving the
workspace - I am unable to reload that workspace in a later session.
That is, R doesn't start at all
2015 Nov 25
2
[RFC] Introducing a vector reduction add instruction.
On Wed, Nov 25, 2015 at 2:32 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> Hi Cong,
>
> After reading the original RFC and this update, I'm still not entirely sure I understand the semantics of the flag you're proposing to add. Does it having something to do with the ordering of the reduction operations?
The flag is only useful for vectorized reduction for now. I'll give
2015 Nov 25
2
[RFC] Introducing a vector reduction add instruction.
----- Original Message -----
> From: "Xinliang David Li" <davidxl at google.com>
> To: "Cong Hou" <congh at google.com>
> Cc: "Hal Finkel" <hfinkel at anl.gov>, "llvm-dev" <llvm-dev at lists.llvm.org>
> Sent: Wednesday, November 25, 2015 5:17:58 PM
> Subject: Re: [llvm-dev] [RFC] Introducing a vector reduction add
2013 Mar 08
3
[Bridge] [Patch net] bridge: do not expire mdb entry when bridge still uses it
From: Cong Wang <amwang at redhat.com>
This is a long-standing bug and reported several times:
https://bugzilla.redhat.com/show_bug.cgi?id=880035
http://marc.info/?l=linux-netdev&m=136164389416341&w=2
This bug can be observed in virt environment, when a KVM guest
communicates with the host via multicast. After some time (should
be 260 sec, I didn't measure), the multicast
2023 May 02
1
[Patch net] vsock: improve tap delivery accuracy
From: Cong Wang <cong.wang at bytedance.com>
When virtqueue_add_sgs() fails, the skb is put back to send queue,
we should not deliver the copy to tap device in this case. So we
need to move virtio_transport_deliver_tap_pkt() down after all
possible failures.
Fixes: 82dfb540aeb2 ("VSOCK: Add virtio vsock vsockmon hooks")
Cc: Stefan Hajnoczi <stefanha at redhat.com>
Cc: