Displaying 17 results from an estimated 17 matches similar to: "metafor - multivariate analysis"
2009 Nov 13
1
multivariate meta-analysis with the metafor package
Dear Wolfgang Viechtbauer and R users,
I have few questions regarding the development of the package 'metafor.
As you suggested , I post to the R-help mailing list.
I read you're planning an extension of this method to the multivariate case.
I think it would be a useful tool.
I'm currently performing some analyses with R on multiple outcomes, using the Stata command mvmeta to get
2011 May 11
0
new package 'mvmeta' to perform multivariate meta-analysis
Dear R Community,
I am pleased to announce the release of a new package called 'mvmeta', now available on CRAN (version 0.2.0).
The package mvmeta provides some functions to perform fixed and random-effects multivariate meta-analysis and meta-regression. This modelling framework is exploited to pool multiple correlated outcomes across studies, and already applied in different fields:
2011 May 11
0
new package 'mvmeta' to perform multivariate meta-analysis
Dear R Community,
I am pleased to announce the release of a new package called 'mvmeta', now available on CRAN (version 0.2.0).
The package mvmeta provides some functions to perform fixed and random-effects multivariate meta-analysis and meta-regression. This modelling framework is exploited to pool multiple correlated outcomes across studies, and already applied in different fields:
2012 Sep 07
2
metafor package: study level variation
Hello. A quick question about incorporating variation due to study in the metafor package. I'm working with a particular data set for meta-analysis where some studies have multiple measurements. Others do not. So, let's say the effect I'm looking at is response to two different kinds of drug treatment - let's call their effect sizes T1 and T2. Some studies have multiple
2009 Dec 04
1
z to r transformation within print.rma.uni and forest from the package metafor
Dear R community,
I'm using the ,metafor'-package by Wolfgang Viechtbauer (Version: 0.5-5) to
calculate random-effects meta-analyses using Correlations and Sample Sizes
as the raw data.
(By the way: Really a nice piece of work, Wolfgang! Thanks heaps.)
I specified the "rma.uni' function so that it looks like this:
MAergebnis<-rma.uni(ri=PosOutc, ni=N,
2011 Feb 20
1
Help Metafor
? stato filtrato un testo allegato il cui set di caratteri non era
indicato...
Nome: non disponibile
URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20110220/1f45c288/attachment.pl>
2014 Jun 24
0
mismatch warning in documentation
Hi all,
I received a request from the R maintainers (kurt Hornik) to fix some problems arising in r-devel with my package mvmeta.
Basically, the check returns a series of warnings about a mismatch in the documentation of some data sets between the code and the docs. See the results at:
http://cran.r-project.org/web/checks/check_results_mvmeta.html
The problem might be that I grouped the
2003 May 26
0
as.matrix() problem in mantel.test()?
Dear all,
I get an unexpected error when using the mantel.test function in
library(ape). Is there something wrong with my matrices?
> dmatr<- read.table("obt.Loiselle.kinship.intens02.DIST.matrix.txt",head=F)
> kmatr<-
read.table("obt.Loiselle.kinship.intens02.KINSHIP.matrix.txt",head=F)
>
> mantel.test(as.matrix(kmatr), as.matrix(dmatr), nperm = 500, graph
2010 Jan 21
1
Rscript question
Hi,
I have some code I run interactively through the R interpreter and it works
fine. I then run it as a script with Rscript and I get an error. The error
is coming when Rscript builds a model matrix.
Here is the Rscript code :
#!/usr/lib/R/bin/Rscript --verbose
require(MASS)
options(contrasts = c("contr.treatment", "contr.poly"))
....
form <- as.formula(paste(ef.var,
2008 Jul 25
2
Fit a 3-Dimensional Line to Data Points
Hi Experts,
I am new to R, and was wondering how to do 3D linear
regression in R. In other words, I need to Fit a
3-Dimensional Line to Data Points (input).
I googled before posting this, and found that it is
possible in Matlab and other commercial packages. For
example, see the Matlab link:
2000 Jul 21
1
confint() error
Dear all,
I have run the confint() function according to below and I get the
following error message:
> confint(stepAIC.glm.spe.var.konn2.abund, level=0.95)
Waiting for profiling to be done...
Error: missing value where logical needed
In addition: Warning message:
NaNs produced in: sqrt((fm$deviance - OriginalDeviance)/DispersionParameter)
or
> confint(stepAIC.glm.spe.var.konn2.abund,
2009 Oct 23
4
How to apply the Wilcoxon test to a hole table at once?
Hi,
I have a data set:
> Dataset
X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 X17
1 user1 m 22 19 28 24 12 18 9 7 4 5 4 7 5 7 9
2 user2 f 25 19 23 18 18 15 6 8 6 6 7 10 7 7 7
3 user3 f 28 21 24 18 15 12 10 6 7 9 5 10 5 9 5
4 user4 f 26 19 26 21 12 18 6 6 5 1 3 8 6 5 6
5 user5 m 21 22 26 18 9 6 4 6 1
2007 Feb 24
1
Woolf's test, Odds ratio, stratification
Just a general question concerning the woolf test (package vcd), when we have
stratified data (2x2 tables) and when the p.value of the woolf-test is
below 0.05 then we assume that there is a heterogeneity and a common odds
ratio cannot be computed?
Does this mean that we have to try to add more stratification variables
(stratify more) to make the woolf-test p.value insignificant?
Also in the
2012 Feb 04
5
Comparaciones múltiples en ANOVA anidadp
Dispongo de un experimento en el que cinco tratamientos ha sido
aplicados a cinco grupos de voluntarios.
En cada grupo había tres personas y a cada persona se le tomaron 3 medidas,
En total dispongo de 45 medidas, pero evidentemente no son
independientes entre sí. Si no tomo en cuenta que las medidas de la
misma persona son más parecidas entre sí (bloques anidados) estaría
incurriendo en
2007 Sep 18
0
[LLVMdev] 2.1 Pre-Release Available (testers needed)
On Fri, Sep 14, 2007 at 11:42:18PM -0700, Tanya Lattner wrote:
> The 2.1 pre-release (version 1) is available for testing:
> http://llvm.org/prereleases/2.1/version1/
>
> [...]
>
> 2) Download llvm-2.1, llvm-test-2.1, and the llvm-gcc4.0 source.
> Compile everything. Run "make check" and the full llvm-test suite
> (make TEST=nightly report).
>
> Send
2007 Sep 15
22
[LLVMdev] 2.1 Pre-Release Available (testers needed)
LLVMers,
The 2.1 pre-release (version 1) is available for testing:
http://llvm.org/prereleases/2.1/version1/
I'm looking for members of the LLVM community to test the 2.1
release. There are 2 ways you can help:
1) Download llvm-2.1, llvm-test-2.1, and the appropriate llvm-gcc4.0
binary. Run "make check" and the full llvm-test suite (make
TEST=nightly report).
2) Download
2013 Feb 01
29
cumulative sum by group and under some criteria
Thank you very much for your reply. Your code work well with this example.
I modified a little to fit my real data, I got an error massage.
Error in split.default(x = seq_len(nrow(x)), f = f, drop = drop, ...) :
Group length is 0 but data length > 0
On Thu, Jan 31, 2013 at 12:21 PM, arun kirshna [via R] <
ml-node+s789695n4657196h87@n4.nabble.com> wrote:
> Hi,
> Try this:
>