Displaying 20 results from an estimated 8000 matches similar to: "general question on Spotfire"
2011 May 24
1
Fortran DLL in Spotfire
I have a R code that loads a FORTRAN DLL to do some calculations. The code
works fine when I use it in R. But when I try it in spotfire it throws an
error that the it is unable to load the shared library and the specified DLL
cannot be found. I have used "setwd" to point to the location in the
spotfire statistical services server library. Is this the correct way to
call the DLL in
2010 Mar 09
0
TIBCO Spotfire 3.1 announced, featuring integration with R & S+
TIBCO Software Inc. today launched TIBCO Spotfire 3.1, the latest
version of its in-memory analytics platform, making predictive analytics
based on R & S+ accessible within Spotfire's visual user experience.
With this release, R & S+ users will be able to share and deploy their
scripts through the Spotfire platform, making advanced analytics
accessible to Business Analysts.
While R
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
2008 Oct 03
3
Can DESCRIPTION Maintainer: field contain general URL instead of only email address?
Our firm would like to route support requests through
a website instead of using email. However R will refuse
to install a package if DESCRIPTION's Maintainer field
does not have a valid email adress or the special value
"ORPHANED". (The check is done with
tools:::.valid_maintainer_field_regexp.)
I imagine a typical Maintainer line for the package "foo"
might be
2010 Jul 02
1
metafor and meta-analysis at arm-level
Hi,
I have been looking for an R package which allowed to do meta-analysis
(both pairwise and network/mixed-treatment) at arm-level rather than at
trial-level, the latter being the common way in which meta-analysis is
done.
By arm-level meta-analysis I mean one that accounts for data provided at
the level of the individual arms of each trial and that does not simply
derive the difference between
2014 Apr 15
2
¿Cómo generar informes con R sin utilizar LaTeX?
Hola, lo primero muchísimas gracias a todos por las respuestas que me
habéis dado.
Precisamente, lo que busco es una solución opensource para realizar
informes con los resultados de R. Que permita cierta maquetación como
LaTeX, y sobre todo una impresión correcta (que no corte las imágenes como
ocurre con markdown/html). Y si dicha solución está orientada a servidor
pues mucho mejor.
Respecto a
2011 Jan 12
1
Metafor vs Meta vs Spreadsheet: wrong numbers
Hello,
I experimented the Metafor and Meta packages in the scope of replacing Excel
for meta-analysis. I performed the first working example provided in Michael
Borenstein's book "Introduction to Meta-Analysis" with Excel, Metafor and Meta.
The numbers given by my spreadsheet, which I validated from Borenstein's book,
conrespond quite closely to those given by Meta, but
2009 Aug 13
1
metafor random effects meta-analysis
Hello,
Great to see the new metafor package for meta-analysis.
I would like to perform a meta-analysis in which I initially calculate the intercept of the model with a nested random-effects structure. In lme, this would be
model<- lme(v3~1, random=~1|species/study, weights = varFixed(~Wt), method = "REML")
where multiple effects sizes are measured for some studies and more than
2011 Aug 17
3
questions about "metafor" package
Hello,
I would like to do a meta-analysis with the package « metafor ». Ideally I would like to use a mixed model because I’m interested to see the effect of some moderators. But the data set I managed to collect from literature presents two limits.
- Firstly, for each observation, I have means for a treatment and for a control, but I don’t always have corresponding standard
2009 Jul 24
1
metafor
I had found the author's (Wolfgang Viechtbauer) earlier meta-analytic code in R, MiMa, useful. so I have been exploring metafor using an example dataset from MiMa. metafor provides a lot more. However, MiMa provided parameter estimates, standard errors, z values, etc. for individual moderators in the meta-analysis, but I don't see how to obtain these from metafor. Have you any help
2013 Mar 15
1
metafor - multivariate analysis
Dear Metafor users, I'm conducting a metaanalysis of prevalence of a particular behaviour based on someone elses' code. I've been labouring under the impression that this:
summary(rma.1<-rma(yi,vi,mods=cbind(approxmeanage,interviewmethodcode),data=mal,method="DL",knha=F,weighted=F,intercept=T))
is doing the multivariate analysis that i want, but have read that
2012 May 05
3
metafor
Dear users of metafor,
I am working on a meta-analysis using the metafor package. I have a
excel csv database that I am working with. I am interested in pooling
the effect measures for a particular subgroup (European women) in this
csv database. I am conducting both sub-group and meta-regression.
In subgroup-analyses, I have stratified the database to create a
separate csv file just for European
2011 Apr 11
3
sort.int(S3object) strips class but not the is.object flag
If x has an S3 class then sort.int(x) returns a value
without an S3 class but which has the is.object flag set,
which, I think, causes identical() give a false/misleading
report:
> x <- structure(1:3, class="unrecognizedClass")
> y <- sort.int(x)
> t <- 1:3
> identical(y, t) # expect TRUE
[1] FALSE
> identical(as.vector(y), as.vector(t)) # expect
2014 Apr 15
2
Fwd: ¿Cómo generar informes con R sin utilizar LaTeX?
Victor,
Me parece que podrías investigar si Scribus puede generar e insertar la
salida de R en sus documentos, por lo que estás agregando a tu pregunta me
parece que BI no es el camino. Si lo haces, creo que a más de uno en esta
lista le interesará la experiencia. La alternativa sugerida por Emilio
usando Rthml y CSS con probablemente markdown y, yo agregaría, pandoc me
resulta muy interesante y
2002 May 18
3
3D graphics with R
Is there any graphical frontend/secondary programm (freely availible for
Windowsor Linux) which can be used with R to display the results of a
principle component analysis in 3D space (rotatable!?)? It works with
Spotfire, but is there any freely or cheaply availible programm?
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read
2010 Feb 05
3
metafor package: effect sizes are not fully independent
In a classical meta analysis model y_i = X_i * beta_i + e_i, data
{y_i} are assumed to be independent effect sizes. However, I'm
encountering the following two scenarios:
(1) Each source has multiple effect sizes, thus {y_i} are not fully
independent with each other.
(2) Each source has multiple effect sizes, each of the effect size
from a source can be categorized as one of a factor levels
2012 Aug 01
1
"metafor" package, proportions: single groups wrt to a categorical dependent variable
Dear Dushanthi,
Please keep your e-mails on the R-Help list, where Michael has already given you some excellent advice. As Michael already explained, metafor can handle proportions, but does not have any specific functionality for categorical variables with more than 2 levels (at the moment). So, if it is logical and possible to do so, you could collapse the levels of the categorical outcome to 2
2013 Jan 23
1
mixed effects meta-regression: nlme vs. metafor
Hi,
I would like to do a meta-analysis, i.e., a mixed-effects regression,
but I don't seem to get what I want using both the nlme or metafor packages.
My question: is there indeed no way to do it?
And if so, is there another package I could use?
Here are the details:
In my meta-analysis I'm comparing different studies that report a
measure at time zero and after a certain followup
2011 Oct 03
1
Meta-analysis of test statistics in "metafor" package?
Hi -
I am conducting a meta-analysis and I have a matrix of f-statistics, Ns and
dfs from a series of studies that tested for an interaction in a 2x2 anova.
I'd like to test whether the 2x2 interaction is significant in the
aggregate.
Similarly, I have a matrix of chi-square statistics that I'd like to
meta-analyze.
How can I input these test statistics into the "metafor"
2012 Jan 11
1
meta-analysis normal quantile plot metafor
Hello,
I once used the metawin software to perform a meta-analysis (see
metawinsoft, Rosenberg et al.) and produced normal qqplot to test for
a potential bias in the dataset.
I now want to re-use the same dataset with the package metafor by W.
Viechtbauer (great package btw).
I run the qqnorm.rma.uni function. I use standardized effect sizes as
in metawin.
QQplot generated with metafor differs