Displaying 20 results from an estimated 4000 matches similar to: "Processing Sweave documents without Sweave"
2009 Feb 20
1
NOT an R problem: cannot install packages from distant repository
I met today a computer crash and our maintenance officer had to reinstall
some components of the OS (MS Windows XP Pro) as well as the Internet
browser (among other things). Now, I cannot install packages from a distant
repository:
> utils:::menuInstallPkgs()
Error in .readRDS(pfile) : unknown input format
> traceback()
5: .readRDS(pfile)
4: .packages(all.available = TRUE)
3:
2007 Mar 04
2
lattice histogram
How to add mean,sd, number of observation in each panel for lattice histogram?
Aimin
2007 Mar 04
1
plot groupedData in nlme
Hi,
Does anyone know how to make the color of the lines all black when
plotting groupedData with an outer factor:
For example,
library(nlme)
plot(Dialyzer, outer=~QB, key=F)
This generated colored curves in R.2.4.1. How to make all the curves black ?
(or how to alter the color (type) of lines for the nlme groupedData
plotting function in general?)
Thanks
Qiong
2007 Mar 04
1
residuals in lme4 package
Hi,
I have not been able to calculate residuals in the lme4 package. I've
been trying the resid() function after I ran a GLMM with the lmer()
function, but I get an error message that says "residuals are not
inserted yet". I looked it up in the "help" history and I realized that
several people have had this problem in the past, related to some bug in
this function and
2009 Aug 07
1
sweave and R. Searching for a document that will get me started
windows XP
R 2.8.1
I would like to learn to use Sweave with R. I have no experience using Latex. I have looked at the sweave manual (http://www.statistik.lmu.de/~leisch/Sweave/Sweave-manual.pdf) and have found it difficult to understand, probably because I don't know Latex. Can someone recommend a document that will get me started with Sweave?
Thanks
John
Confidentiality Statement:
This
2010 Oct 16
1
Binaries of R.12.0 for Windows: where are RGUI and Rterm ?
Dear all,
I've just downloaded R.12.0 from CRAN
(http://cran.r-project.org/bin/windows/base/release.htm). I am unable
to find RGUI.exe as well as Rterm.exe. Conversely to what is explained
in readme.R.2.12.0:
There are two versions of the R executable in R-2.12.0\bin\i386 (32-bit) or
R-2.12.0\bin\x64 (64-bit).
I can't find directories i386 or x64 in R-2.12.0\bin
--
Renaud Lancelot
EDEN
2010 Oct 18
1
R 2.12.0 for Windows: error when loading (some) packages
Dear all,
I have installed the latest version of R 2.12.0 available on CRAN
(http://cran.r-project.org). When I try to load the recommended
package lattice:
> library(lattice)
Error: package 'lattice' is not installed for 'arch=i386'
I am running Rgui using
C:\R\R-2.12.0\bin\i386\Rgui.exe --vanilla
> sessionInfo()
R version 2.12.0 (2010-10-15)
Platform:
2010 Sep 25
4
Help required
Is it possible to read jpeg files into R?
If yes please guide, Thanks.. I tried to search many time but failed to do.
Thankis in advance..
with Best Regards,
Malik Shahzad
Visiting Researcher
National Institute of Informatics (NII)
Tokyo, Japan
Doctoral Student
Asian Institute of Technology (AIT)
Bangkok, Thailand
+66-8-7676-5616
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2006 Jun 04
2
evaluation of the alternative expression in ifelse
Dear all,
I am trying to avoid the warnings produced by:
> x <- -2:2
> log(x)
[1] NaN NaN -Inf 0.0000000 0.6931472
Warning message:
production de NaN in: log(x)
I thought that using ifelse would be a solution, but it is not the case:
> ifelse(test = x < 0, yes = NaN, no = log(x))
[1] NaN NaN -Inf 0.0000000 0.6931472
Warning message:
production
2006 Aug 21
1
Fwd: Re: Finney's fiducial confidence intervals of LD50
thanks a lot Renaud.
but i was interested in Finney's fiducial confidence intervals of LD50 so to obtain comparable results with SPSS.
But your reply leads me to the next question: does anybody know what is the best method (asymptotic, bootstrap etc.) for calculating confidence intervals of LD50?
i could "get rid" of Finney's fiducial confidence intervals but
2006 Jul 08
2
String mathematical function to R-function
hello
I make a subroutine that give-me a (mathematical)
function in string format.
I would like transform this string into function ( R
function ).
thanks for any tips.
cleber
#e.g.
fun_String = "-100*x1 + 0*x2 + 100*x3"
fun <- function(x1,x2,x3){
return(
############
evaluation( fun_String )
############
)
True String mathematical function :-( :-(
> nomes
[1]
2006 Jan 30
4
Logistic regression model selection with overdispersed/autocorrelated data
I am creating habitat selection models for caribou and other species with
data collected from GPS collars. In my current situation the radio-collars
recorded the locations of 30 caribou every 6 hours. I am then comparing
resources used at caribou locations to random locations using logistic
regression (standard habitat analysis).
The data is therefore highly autocorrelated and this causes Type
2007 May 27
1
lattice plots: filled points in the key
I wonder why the following code does not produce filled points in the
key, as I would have expected:
> library(lattice)
> x <- 1:10
> y <- rnorm(10)
> xyplot(y ~ x, pch = 21, col = "black", fill = "grey",
+ key = list(space = "top",
+ text = list("data"),
+ points = list(pch = 21, col =
2005 Sep 29
5
Regression slope confidence interval
Hi list,
is there any direct way to obtain confidence intervals for the regression
slope from lm, predict.lm or the like?
(If not, is there any reason? This is also missing in some other statistics
softwares, and I thought this would be quite a standard application.)
I know that it's easy to implement but it's for
explanation to people who faint if they have to do their own
programming...
2006 Aug 27
1
refer to objects with sequential names
Dear Listers,
If I have several glm objects with names glm1, glm2.... and want to apply
new data to these objects. Instead of typing "predict(glm1, newdata)..." 100
times, is there way I could do so in a loop?
Thank you so much!
wensui
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2006 Jan 18
1
ICC for Binary data
Hello R users:
I am fairly new to R and am trying to figure out how to compute an intraclass correlation (ICC) and/or design effect for binary data? More specifically, I am trying to determine the amount of clustering in a data set - that is, whether certain treatment programs tend to work with more or less severe clients. The outcome variable is dichotomous (low severity / high severity)
2005 Nov 13
4
voronoi
Is there any pure r code to do delaunay or voronoi diagrams?
Thanks!
---------------------------------
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2006 Nov 09
1
Extracting the full coefficient matrix from a gls summary?
Hi,
I am trying to extract the coefficients matrix from a gls summary.
Contrary to the lm function, the command fit$coefficients returns
only the estimates of the model, not the whole matrix including the
std errors, the t and the p values.
example:
ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
group <-
2006 Nov 06
1
question about function "gls" in library "nlme"
Hi:
The gls function I used in my code is the following
fm<-gls(y~x,correlation=corARMA(p=2) )
My question is how to extact the AR(2) parameters from "fm".
The object "fm" is the following. How can I extract the correlation parameters
Phi1 and Phi2 from "fm"? These two parametrs is not in the "coef" componenet of "fm".
Thanks a
2005 Dec 05
1
extracting p-values from lmer()
Dear R users,
I've been struggling with the following problem: I want to extract the Wald p-value
from an lmer() fit, i.e., consider
library(lme4)
n <- 120
x1 <- runif(n, -4, 4)
x2 <- sample(0:1, n, TRUE)
z <- rnorm(n)
id <- 1:n
N <- sample(20:200, n, TRUE)
y <- rbinom(n, N, plogis(0.1 + 0.2 * x1 - 0.5 * x2 + 1.5 * z))
m1 <- lmer(cbind(y, N - y) ~ x1 + x2 + (1 | id),