Displaying 20 results from an estimated 2000 matches similar to: "html help fails for named vector objects (PR#9927)"
2007 Oct 27
1
Unwanted axis labels when rug() has POSIXlt argument (PR#10380)
rug() may add integer axis labels when called with a POSIXlt object
as argument.
dtimes <- c("09/29/2007 12:54", "09/30/2007 00:14", "10/01/2007
00:14",
"10/02/2007 00:14", "10/03/2007 00:14", "10/04/2007
00:14",
"10/05/2007 00:14", "10/06/2007 00:14", "10/07/2007
2011 Apr 09
1
Compression of largish expression array files in the DAAGbio/inst/doc directory?
The inst/doc directory of the DAAG package has 6 files coral551.spot, ... that
are around 0.85 MB each. It would be useful to be able to zip then, but that
as matters stand interferes with the use of the Sweave file that uses them to
demonstrate input of expression array data that is in the "spot" format. They
do not automatically get unzipped when required. I have checked that
2010 Nov 15
2
L-shaped boxes with lattice graphs?
Can anyone suggest an equivalent, for lattice graphs,
of the base graphics argument bty="l"?
NB that I am leaving off the box around the strip,
with a strip function:
stripfun <- function(which.given,which.panel,
factor.levels=as.expression(levlist), ...){
panel.text(x=0, y=0.5,
lab = as.expression(levlist[which.panel[which.given]]),
2008 Jan 26
3
REvolution
Does anyone know any more than is in the following press release
about REvolution Computing and their commercialization of R?
http://www.intel.com/capital/news/releases/080122.htm
"Intel Capital, the global investment arm of Intel Corporation, today
announced that it has invested in the Series A financing of REvolution
Computing, creator of parallel computing software for computational
2009 Sep 19
2
Use of R in Schools
I am looking for information on experimentation with the use
of R in the teaching of statistics and science in schools. Any
leads would be very welcome. I am certain that there is such
experimentation.
I've made this inquiry on r-sig-teaching, with no response.
John.
John Maindonald email: john.maindonald at anu.edu.au
phone : +61 2 (6125)3473 fax : +61 2(6125)5549
Centre
2013 Oct 03
1
Error in "Writing R Extensions"
In Section 1.4.2 of "Writing R Extensions"
%\VignetteEngine{knitr::knitr}
should be
%\VignetteEngine{knitr::knit}
> sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-apple-darwin10.8.0 (64-bit)
Is this sort of thing best reported here, or is a huge report in order?
John Maindonald email: john.maindonald at anu.edu.au
phone : +61 2 (6125)3473 fax
2014 Nov 13
1
Correction in help(factanal)
<<<
Thus factor analysis is in essence a model for the correlation matrix of x,
? = ?'? + ?
>>>
This should surely be ? = ??' + ?
Also line 3 under ?Details? says
<<<
for a p?element row-vector x, ?
>>>
x is here surely a column vector, albeit the transpose of a row vector
from the data matrix.
cf page 322 of ?Modern Applied Statistics with S?, 4th
2005 Oct 01
2
Multiple expressions, when using substitute()
expression() accepts multiple expressions as arguments, thus:
plot(1:2, 1:2)
legend("topleft",
expression(y == a * x^b,
"where "* paste(y=="wood; ",
x=="dbh")))
Is there a way to do this when values are to be substituted
for a and b? i.e., the first element of the legend argument
to legend() becomes,
2005 Sep 09
2
Discrepancy between R and SPSS in 2-way, repeated measures ANOVA
Dear R community,
I am trying to resolve a discrepancy between the way SPSS and R handle
2-way, repeated measures ANOVA.
An experiment was performed in which samples were drawn before and after
treatment of four groups of subjects (control and disease states 1, 2 and
3). Each group contained five subjects. An experimental measurement was
performed on each sample to yield a
2011 Feb 04
1
keep.source when semicolons separate statements on the one line
The following is 'semicolon.Rnw'
> \SweaveOpts{engine=R, keep.source=TRUE}
>
> <<xycig-A, eval=f, echo=f>>=
> library(SMIR); data(bronchit); library(KernSmooth)
> @ %
>
> Code for panel A is
> <<code-xycig-A, eval=f, echo=t>>=
> <<xycig-A>>
> @ %
Sweave("semicolon") yields the following 'semicolon.tex'
2004 Dec 13
2
classification for huge datasets: SVM yields memory troubles
Hi
I have a matrix with 30 observations and roughly 30000 variables, each
obs belongs to one of two groups. With svm and slda I get into memory
troubles ('cannot allocate vector of size' roughly 2G). PCA LDA runs
fine. Are there any way to use the memory issue withe SVM's? Or can you
recommend any other classification method for such huge datasets?
P.S. I run suse 9.1 on a 2G RAM
2010 Nov 25
1
\Sweaveopts error
I have a file 4lmetc.Rnw, intended for inclusion in a LaTeX document,
that starts:
\SweaveOpts{engine=R, keep.source=TRUE}
\SweaveOpts{eps=FALSE, prefix.string=snArt/4lmetc}
The attempt to process the file through Sweave generates the error:
> Sweave("4lmetc")
Writing to file 4lmetc.tex
Processing code chunks ...
1 : keep.source term verbatim
Error in file(srcfile$filename, open =
2005 Apr 23
3
Enhanced version of plot.lm()
I propose the following enhancements and changes to plot.lm(),
the most important of which is the addition of a Residuals vs
Leverage plot.
(1) A residual versus leverage plot has been added, available
by specifying which = 5, and not included as one of the default
plots. Contours of Cook's distance are included, by default at
values of 0.5 and 1.0. The labeled points, if any, are those
2015 Jan 25
1
R CMD check message: "The following files should probably not be installed"
I am doing [R version 3.1.2 (2014-10-31) -- "Pumpkin Helmet?; Platform: x86_64-apple-darwin10.8.0 (64-bit)]
> R CMD build DAAGviz
> R CMD check DAAGviz_1.0.3.tar.gz
Without a .Rinstignore file, I get:
<<<
The following files should probably not be installed:
?figs10.pdf?, ?figs11.pdf?, ?figs12.pdf?, ?figs13.pdf?, ?figs14.pdf?,
?figs5.pdf?, ?figs6.pdf?, ?figs9.pdf?
2011 Jun 29
1
R-devel Digest, Vol 100, Issue 28
I get the same style of path as Hadley. This is on Windows 7 Home Premium with SP1.
I start R by clicking on the R-2.31.0 icon.
I'd assumed that it was a change that came with R-2.13.0!
(On 32-bit Windows XP, which I have just checked, I do indeed get the 8.3 paths.)
> R.home()
[1] "C:/Programs/R/R-2.13.0"
> sessionInfo()
R version 2.13.0 (2011-04-13)
Platform:
2005 Apr 19
2
Odd diagnostic plots in mixed-effects models
Dear R community,
In the excellent nlme package the default diagnostic plot graphs the innermost residuals against innermost fitted values. I recently fit a mixed-effects model in which there was a very clear positive linear trend in this plot.
I inferred that this trend occurred because my fixed effect was a two-level factor, and my random effect was a 12-level factor. The negative residuals
2005 Oct 13
1
arima: warning when fixing MA parameters.
I am puzzled by the warning message in the output below. It appears
whether or not I fit the seasonal term (but the precise point of doing
this was to fit what is effectively a second seasonal term). Is there
some deep reason why AR parameters
("Warning message: some AR parameters were fixed: ...")
should somehow intrude into the fitting of a model that has only MA
terms?
>
2002 Sep 30
2
Decompose numerical factor into orthog. poly parts
Consider the following analysis of a class experiment done as a Latin Square:
> spinner <- gl(4,4,16,label=c("Murray","Angela","Shasha","Stephen"))
> order <- gl(4,1,16)
> treat <- scan()
1: 1 2 4 3
5: 4 3 1 2
9: 3 4 2 1
13: 2 1 3 4
17:
Read 16 items
> coin <-
2007 Dec 30
2
Symbolic substitution in parallel; use infinity symbol?
I'd like to be able to modify axlab in (C) below so that 'Inf'
is replaced by the infinity symbol.
y <- rnorm(40)
breaks <- c(-Inf, -1, 1, Inf)
x <- cut(y, breaks=breaks)
plot(unclass(x), y, xaxt="n", xlab="")
## A: The following gives the axis labels "(-Inf, 1]", etc.
axis(1, at=1:3, labels=expression("(-Inf,-1]", "(-1,1]",
2006 Jan 05
2
Splitting the list
I've changed the heading because this really is another thread. I
think it inevitable that there will, in the course of time, be other
lists that are devoted, in some shape or form, to the concerns of
practitioners (at all levels) who are using R. One development I'd
not like to see is fracture along application area lines, allowing
those who are comfortable in coteries whose