Displaying 20 results from an estimated 700 matches similar to: "tweaking forest plot (metafor package)"
2010 Dec 15
1
Using Metafor package: how to backtransform model coefficients when Freeman Tukey double arcine transformation is used
Hello,
I am performing a meta-analysis using the metafor package. My data are
proportions and I used the Freeman Tukey double arcine (FT)
transformation to fit the random effects model. Now I want to create a
forest plot with my estimates backtransformed to the original scale of
proportions. Can this be done?
Regards,
Patricia
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,
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
2013 Jan 05
3
package metafor: error when setting 'col' and 'at' for a forest plot
I am using metafor to create forest plots. This code gives me the expected
plot (setting x axis tick marks):
forest(forest$OR, ci.lb=forest$Low, ci.ub=forest$High, at=log(c(.05, .25,
1, 10)), slab=forest$SNP, atransf=exp)
As does this (setting colors):
forest(forest$OR, ci.lb=forest$Low, ci.ub=forest$High, col=c(1,2,3),
slab=forest$SNP, atransf=exp)
But if I try to set both 'at' and
2012 Dec 31
2
a problem for metafor package
Dear sir or madam
I want to know how to use "metafor"package do a meta anlysis, forest plot show the results of whole study and results of two subgroups
like this the forest plot show in the attachment.
looking forword to your reply
Regards and Cheers
Xudong Liu
School of Public Health and Primary Care
The Chinese University of Hong Kong
Email: liuxudong at cuhk.edu.hk
2013 Dec 12
1
refline in forest() {metafor}
Hello all,
I am using forest.rma to plot a random effects model meta-analysis. I noticed
that refline sets a vertical line indicating the null hypothesis.
Is there a way to draw another vertical line, possibly dashed, centered on the
summary estimate?
Prof. Viechtbauer, if you happen to read this, I'd like to thank you for making
an excellent package. I have been using the metafor package
2011 Jul 01
2
methods package not loaded by default when using Rscript in R2.13
Dear all,
As the object of this mail suggests, the methods package is not loaded by
default in R2.13 when using Rscript whereas it is loaded when using an
interactive session.
An example with the metafor package :
library(metafor)
example(addpoly.rma)
this works in an interaction R shell, but put it in a .R file and use it with
Rscript, it won't work until you added
library(methods)
2012 Sep 27
1
What to use for ti in back-transforming summary statistics from F-T double square-root transformation in 'metafor'
Hi Dr. Viechtbauer,
I'm doing meta-analysis using your package 'metafor'. I used the 'IRFT' to transform the incident rate. But when I tried to back-transform the summary estimates from function rma, I don't know what's the appropriate ti to feed in function transf.iirft. I searched and found your post about using harmonic mean for ni to back-transform the double
2011 Jun 27
3
Creating a Polar Plot with expanding points as radius increases
I'd like to create a polar plot similar to those created by the polarFreq
function in the openair package. However, this package seems to be specific
to wind speed and direction, and requires a "ws" (wind speed) and a "wd"
(wind direction) column. My data is unrelated to wind speed, but I'd like
to be able to get a plot that does what polarFreq's plots do; I'd
2013 Mar 19
1
Error when adding lines to a plot using the mixed-effect model and metafor package
Hi,
I am a student using R for my final year project, with the metafor package being particularly helpful. I have been following the steps laid out in the manual 'Conducting Meta-analysis in R with the Metafor package' (Viechtbauer, 2010) and applying it to my own data of infected Anopheles mosquitoes across Africa.
In particular, I am attempting to apply a mixed-effect model to my data
2012 Jul 22
1
Adding gamma and 3-parameter log normal distributions to L-moments ratio diagram lmrd()
How to adapt this piece of code but for: - gamma distribution - 3 parameter
log normal
More specifically, where can I find the specification of the parameter
(lmom) for pelgam() and pelln3()?
Lmom package info just gives: pelgam(lmom), lelln3(lmom), where lmom is a
numeric vector containing the L-moments of the distribution or of a data
sample.
# Draw an L-moment ratio diagram and add a line for
2012 Jul 30
1
fractal package
Greetings of Peace!
I am new in R software. I want to use the correlation dimension corrDim in computing a map. I have installed the packages(fractal) in R. Now my problem is this, when I tried your example in the following site http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=fractal:corrDim
> library(fractal)
> png(filename="corrDim_%03d_med.png", width=480, height=480)
>
2010 Jun 09
1
back transforming arcsine transformations in metafor
Hi everyone,
I'm using the metafor package to meta-analyze a set of proportions. This is working really well for the raw proportions, but is there a way to back-transform the arcsine transformed proportions in the rma or forest functions with the atransf option? The estimates and CIs for the transformed proportions need to be back-transformed to be the sin of the estimate squared.
2011 Apr 11
1
Polar Plots
Dear List,
Following the link below (
http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=plotrix:clock24.plot) I got an
interesting polar plots which displayed my data and the time of observation.
Thank you very much for providing such details.
However, I have two set of data which I wish to display in the same polar
plot. I tried using points to add the second data but could not succeed.
That is,
2012 Jan 30
1
Reg : Hello all.. help needed regarding heatmaps
Hello all ,
I am beginner and new to this -R world. I have heard much about R and
started working on it.
I have some data of 20 business applications( y -axis) and Months( x-axis)
and values as their score for every month . I tried to generate a heatmap
with this data and got some good results. Can some one help me on how to
generate the legend next to heatmap please...
can some one send me
2012 Feb 11
1
AMOVA error: 'bin' must be numeric or a factor
Hi!
I am trying to analyse my data using amova
(http://www.oga-lab.net/RGM2/func.php?rd_id=pegas:amova):
My input to R is a DNA sequence file, format=fasta
dna<- read.dna("XX.fasta", format="fasta") #left other options as
default
d<- dist.dna(dna, model="raw")
g<- read.table("XXX.design")
Load necessary libraries:
library(pegas)
2012 Jul 11
0
declaring negative log likelihood of a distribution
Hi everyone!
I already posted
http://r.789695.n4.nabble.com/Declaring-a-density-function-with-for-loop-td4635699.html
a question on finding density values of a new Binomial like distribution
which has the following pmf:
http://r.789695.n4.nabble.com/file/n4636134/kb.png
Thank fully
http://r.789695.n4.nabble.com/template/NamlServlet.jtp?macro=user_nodes&user=124474
Berend Hasselman and
2009 Dec 05
1
Forest Plot
Hi All,
I want to produce a similar "Forest Plot" as it is on the following link,
but my data would be having only two columns (one for "Estimate" and other
for "Std. Dev"). Can anyone suggest some function() {Package} which can take
such file as an input and give following forest plot:
2011 Dec 02
1
Willkommen bei der "R-help" Mailingliste
Hello everbody,
I am new to this mailing list and hope to find some help.
I'm trying to get into the spatstat package and encountered two problems. First a graphical one:
There is an example dataset called "finpines" which has several marks (http://www.oga-lab.net/RGM2/func.php?rd_id=spatstat:finpines)
When I pass the given code from the website to R
data(finpines)
2012 Oct 10
1
combine unadjusted and adjusted forest plots
Hello,
I am learning to use the metafor package to conduct meta-regression analyses for a systematic review on multidisciplinary care interventions in chronic kidney disease. For the forest plots, I can't figure out how to plot unadjusted and adjusted models on the same plot. From top to bottom, I would like to be able have the unadjusted plot, the multivariate adjusted plot, then each