Displaying 20 results from an estimated 3000 matches similar to: "parallel REML computation"
2002 Mar 27
0
Re: RE Vertical bars with barchart()
Hi,
[I'mm cc-ing r-help on this, since some others might be interested (Tony
Rossini is, at least)]
Yes, I saw your mail and was wondering about what would be the best approach
to do it. It's definitely not trivial, mainly because Trellis is not designed
to handle factors on the x-axis (chiefly for convenience, as factors typically
have long names which are difficult to write on the
2007 Mar 08
1
sink with R-code
I have the same question that Eusebio had:
Is there a function similar to "sink" that redirect also R code to a
file that
is:
sink("R001")
x <- c(2,-6,-4,8,5,4,1,3,4,-9,0,1)
A <- matrix(x, ncol=3)
A
A.prima <- t(A)
A.prima
dim(A)
dim(A.prima)
sink()
create a file "R001" with contents:
------------------------------------------
[,1] [,2] [,3]
[1,]
2000 Jan 24
1
Help compiling R
Hi,
I have just downloaded R (v. 0.90.1) and am trying to compile it on a Sun/UNIX
system running Solaris 2.6. Needless to say, I have run into a problem, and
cannot find any info on it through the CRAN site, or searching the old
discussion files.
When I do the "make', after configuring, I get the message, "The current
directory must be set to the RSI directory. Change the
2013 May 13
3
[PATCH] Specify PAM Service name in sshd_config
Hello All,
The attached patch allows openssh to specify which pam service name to
authenticate users against by specifying the PAMServiceName attribute in
the sshd_config file. Because the parameter can be included in the Match
directive sections, it allows different authentication based on the Match
directive. In our case, we use it to allow different levels of
authentication based on the
2004 Dec 16
2
Unsightly lines from x*y grid in levelplot with Postscript
When I generate levelplot figures with Postscript, the lines from
the underlying grid (i.e., the x and y in z ~ x* y)
show up as faint white lines in the output. If I have a dense grid,
the lines wash out the contour colors. I can avoid the problem if
I use png instead, but that brings up other problems. Any
ideas for how I can get Postscript to not show those lines around
the cells?
Scott
2009 Mar 10
0
Alternative to interp.surface() offered
I wanted a simple function for bilinear interpolation on a 2-D grid, and
interp.surface() in the fields package didn't quite suit my needs. In
particular, it requires uniform spacing between grid points. It also
didn't have the "visual" reference frame I was looking for. Here is an
alternative function, followed by an example.
# A function for bilinear interpolation on a 2-d
2003 Nov 13
1
Can't get Sweave syntax highlighting with Emacs
I can't get Emacs to automatically do syntax highlighting of
Sweave files. I have followed Friedrich's suggestion for code
to insert into my .emacs file. The complete section from my .emacs
file is given below. When I load a *.Snw file, font is white until I press
M-x, then the first code and document chunks get highlighted, but not
the rest of the file. Latex and Noweb menus are
2005 Jan 14
0
Code contributed for a gant (Gantt) chart
I searched CRAN for material on gant (or Gantt) charts, those schedule
plots that look like horizontal barplots where the x-axis is time.
Finding none, I wrote the following and am submitting it to the archive
so that it may help someone in the future.
plotfile <- "gant.eps"
regular.color <- "lightgray"
important.color <- "yellow"
tasks <- list() #
2001 May 14
0
followup: lookup function for density(...) objects
Thanks to Ross Ihaka and Bob Wheeler for responding to my earlier question. I
looked into the Johnson system functions in SuppDists package. For now, I want
to stick with the density(...) estimator, and so still need the variate lookup
function.
As per Ross' suggestion, I just did a numerical integration on the density
object and used approxfun/splinefun to "lookup" the variate
2004 Jul 13
1
summary() doesn't work with Date class objects
The handy function summary() doesn't work correctly with Date class
objects:
> R.version.string
[1] "R version 1.9.1, 2004-06-21"
> b <- as.Date(c("2002-12-26", "2002-12-27", "2002-12-28", "2002-12-29", "2002-12-30"))
> b
[1] "2002-12-26" "2002-12-27" "2002-12-28" "2002-12-29"
2001 Nov 28
2
shell()/system() question
Hi folks:
How do I get shell() or system() to run external programs in a particular
directory (different from the current R working directory)?
> version
_
platform i386-pc-mingw32
arch x86
os Win32
system x86, Win32
status
major 1
minor 3.0
year 2001
month 06
2011 Mar 08
0
nlme: Computing REML likelihood value from ML likelihood value
Dear All,
I have a question concerning the computation of the value of the Restricted Maximum Likelihood (REML) function evaluated at a given set of parameter estimates from the Maximum likelihood (ML) value. Following the book of Fitzmaurice, Laird and Ware (2004) "Applied Longitudinal Analysis" pp101, the REML likelihood can be computed by multiplying the ML likleihood by the square
2003 Jan 29
1
dyn.load warning message in R1.6.2 on Windows XP
Hi folks:
I used to load a DLL fine up until R 1.5.1. The same DLL dyn.loaded under R
1.6.2 prints the following warning message:
> dyn.load("C:/Rajiv/Bin/rpdate.dll")
Warning message:
DLL attempted to change FPU control word from 8001f to 9001f
>
Any indication as to what the warning means, and whether I should be
concerned about it? The DLL is made from a pure C code,
2010 Mar 03
2
Screen settings for point of view in lattice and misc3d
I'm making some 3D plots with contour3d from misc3d and wireframe from lattice. I want to view them from below; i.e. the negative z-axis. I can't figure out how to do so. I would like my point of view looking up from below, with the z, y, and x axes positive going away. Can anyone tell me the correct settings for screen to achieve this? Here is what I've found so far:
2004 Oct 29
1
glmmPQL and REML
Hi,
I am trying to use glmmPQL package for Generalized linear mixed models.
This package works by repeated calls to lme. lme uses by default REML
method for estimation. Then, does glmmmPQL use REML too? In contrast,
how can I change it?
I have tried it, writing : method="REML", but the program says: invalid
method REML.
If somebody can answer me....thanks,
Sonja
2012 Oct 01
0
[Fwd: REML - quasipoisson]
Hi Greg,
For quasi families I've used extended quasi-likelihood (see Mccullagh
and Nelder, Generalized Linear Models 2nd ed, section 9.6) in place of
the likelihood/quasi-likelihood in the expression for the (RE)ML score.
I hadn't realised that this was possible before the paper was published.
best,
Simon
ps. sorry for slow reply, the original message slipped through my filter
for
2012 Aug 08
1
mgcv and gamm4: REML, GCV, and AIC
Hi,
I've been using gamm4 to build GAMMs for exploring environmental influences on genetic ancestry. Things have gone well and I have 2 very straightforward questions:
1. I've used method=REML. Am I correct that this is an alternative method for estimating the smooth functions in GAMMs rather than GCV that is often used for GAMs? I've read up on REML and it makes sense, but I'm
2003 Jul 25
1
glmmPQL using REML instead of ML
Hi,
In glmmPQL in the MASS library, the function uses
repeated calls to the function lme(), using ML. Does
anyone know how you can change this to REML? I know
that in lme(), the default is actually set to REML and
you can also specify this as 'method=REML' or
'method'ML' but this isn't applicable to glmmPQL().
I'd appreciate any help or advice!
Thanks,
Emma
2003 Jun 20
1
[OFF] stepwise using REML???
Hi,
I know that is not possible make a stepwise procedure using REML in R, I can
use ML for this.
For nested design it may be very dangerous due the difference in variance
structure, mainly in a splitplot design. ML make significative variables that
REML dont make.
I read an article that is made a stepwise procedure using GENSTAT.
from article:
"Terms were dropped from a model in a
2002 Mar 05
3
reading 2-byte integers using readBin and connections
Hi folks:
This may be a stupid question, but I cannot seem to find a way to tell
readBin that I want to read 2-byte integers from the connection. The input
file is 150,720 bytes long containing 75,360 short (2-byte) integers. But
specifying "integer" or "int" for what in readBin only returns me a vector
of length 37680, leading me to believe that sizeof(integer) or