Displaying 20 results from an estimated 4000 matches similar to: "Create patterns within a plot?"
2012 Jul 24
1
Annotate forest plot 'forest.rma()' for meta-analysis with metafor package
Dear R-experts,
The forest.rma() function from the metafor package creates nice forest
plots for presenting the results of a meta-analysis. These plots can be
annotated for e.g. giving names to the columns. E.g. as in the
documentation of the package:
data(dat.bcg)
### meta-analysis of the log relative risks using a random-effects model
res <- rma(ai=tpos, bi=tneg, ci=cpos, di=cneg,
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
2010 Mar 02
1
add a header to a forest plot (metafor)
Dear R-community,
I'm currently trying to assemble a forest plot using the "forest" function
from package "metaphor".
Works well. Even the regular "main"-argument works for adding a title to the
graph.
However, I would like to add one top row which explains the nature of the
columns. Very much like the usual header in spreadsheet programs.
For example:
2011 Dec 10
3
Overlaying density plot on forest plot
Dear R User,
Please, I am new to R. I want to overlay density plot for predictive interval pooled result in meta-analysis. http://addictedtor.free.fr/graphiques/graphcode.php?graph=114
Regards
Frank Peter
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
forest + igraph ?
Hello,
Is it possible to have two meta-plots in one graph (not par(mfrow=c(2,1))? But somthing like
library(metafor)
library("igraph")
if (interactive()) {
forest(dat.Treat$RR, ci.lb=dat.Treat$lower, ci.ub=dat.Treat$upper, xlab="Relative Risk",slab=dat.Treat$ID,refline=1)
forest(dat.Control$RR, ci.lb=dat.Control$lower, ci.ub=dat.Control$upper, xlab="Relative
2011 Jan 12
1
metafor/ meta-regression
Hi I have tryed to do the meta-regression in metafor package, but I
would like to get the standardized coefficients for each variable, however in
command:
Ø res<-rma.uni (yi, vi,
method="REML", mods=~cota+DL+uso+gadiente+idade, data= turbidez)
I just have the coefficients no standardized (estimate) of the multiple
regression.
What I need to do?
Thanks
Fernanda Melo
2011 Jul 18
1
Extract confidence intervals from rma object (metafor package)
Dear R-experts!
I am working on some meta-analysis using the metafor package. I would like
to extract values of the confidence intervals of the effect sizes of the
single studies from an rma object. Those values are printed out when
plotting a forest plot using the forest function on the rma object, however
I was not able to locate them.
Many thanks for your help!
Jokel
[[alternative HTML
2011 Aug 05
1
Main-effect of categorical variables in meta-analysis (metafor)
Dear R-experts!
In a meta-analysis (metafor) I would like to assess the effect of two
categorical covariates (A & B) whereas they both have 4 levels.
Is my understanding correct that this would require to dummy-code (0,1) each
level of each covariate (A & B)?
However I am interested in the main-effects and the interaction of these two
covariates and the dummy-coding would only allow to
2007 Dec 12
3
Measure of agreement??
Dear List,
Please put me on the right track. I have been searching for the R functions for measures of agreement. Where should I look?
Patrik Öhagen
Läkemedelsverket
Box 26
751 03 Uppsala
Tel. +46(0)18-174924
patrik.ohagen@mpa.se
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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 Aug 02
2
metafor- interpretation of moderators test for raw proportions
Hello metafor users,
I'm using metafor to perform a single-effect summary estimate of the raw
proportion of patients experiencing a post-operative complication, and I'm
interested in seeing if this proportion differs between the three most
commonly used surgical techniques. The software is working as expected, but
I would like to double check on the interpretation of my mixed-effect model
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
2007 Mar 05
4
about find the solution
If I want to find out the soltion of X1,X2
that min(3X1+2X2+X1X2) subject to
20<=X1+3X2<=50
10<=X1
which function or package can I use?
Thanks.
2011 Aug 29
3
how to start R script editor by default
Hi All,
1) Is it possible to set the options such that R opens a new script editor
every time I start the R and 2) specify the size of windows.
Thanks for the suggestion and Best regards,
Krishna
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2006 Aug 31
3
predict.lm within a function
Hi
I'm trying to wrap predict.lm within a function, but I'm having problems
passing arguments into it in this way.
Basically I want to create a lm object, then pass it into the predict.lm
function and be able to tell predict.lm which variable I want to predict
for, by passing the variable name as an argument of the wrapper
function. This variable will always be a factor with 3 levels,
2011 Jul 04
4
stream rtp from asterisk
Hi!
Anybody familiar with streaming rtp from asterisk. Preferably with the
xorcom asterisk patch which streams rtp from asterisk to oreka audio
server. Any ideas will do just fine though!
Regards / Marcus
2008 Aug 19
1
Exponential smoothing?
An r hel search picks up
http://tolstoy.newcastle.edu.au/R/help/01a/1162.html
from 2001, which points towards the ts package.
>>> ?hagen Patrik <Patrik.Ohagen at mpa.se> 19/08/2008 09:00:12 >>>
Dear List,
I have used all my resources (i.e. "help.search) and I still havn't been able to figure out if there is an Exponential Smoothing command in R.
Thank you in
2012 Dec 18
7
Summarizing elements for a data.frame
Hello again, let say we have following data:
Dat1 <- structure(list(factor.sample.LETTERS.1.3...6..replace...T.. =
structure(c(1L,
3L, 2L, 1L, 3L, 3L), .Label = c("A", "B", "C"), class = "factor"),
factor.sample.letters.1.2...6..replace...T.. = structure(c(2L,
2L, 1L, 1L, 2L, 1L), .Label = c("a", "b"), class =
2006 Feb 23
2
SV: Polycom 501 ACDlogin
Thanks!
Do you have any suggestions on what I might do next. I have the phones, I have asterisk, and I have everything setup. But i can't get the login to work with the Polycom function. Nothing happens...and I can't find any readmes' or manuals.
Regards,
Jan
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