Displaying 20 results from an estimated 300 matches similar to: "Newbie problem ... Forest plot"
2006 Apr 24
1
rmeta: forest plot problem
Der useRs,
I'm working on meta analysis using rmeta package. Using code below I
plot the forest plot:
library(rmeta)
data (catheter)
a<-meta.MH (n.trt, n.ctrl, col.trt, col.ctrl, data=catheter, names=Name,
subset=c(13,6,5,3,7,12,4,11,1,8,10,2))
summary(a) # odds ratio values and confidence intervals
metaplot(a$logOR, a$selogOR, nn=a$selogOR^-2,a$names, summn=a$logMH,
sumse=a$selogMH,
2010 Aug 24
2
forest plot
Dear Sir or Madam,
I am trying to plot forest plot. I extracted odds ratio and their corresponding 95% confidence interval from papers, then I calculated the log(OR) and standard error using the following command
OR<-metagen(logOR,selogOR,sm="OR")
forest(OR,comb.fixed=TRUE,comb.random=TRUE,digits=2)
However, it does not produce a forest plot. Can someone kindly help? Thank
2009 Jun 27
4
questions about meta-analysis
Dear R users:
In the example of meta-analysis (cochrane, package rmeta), I can not found the p-value of Test for overall effect, and some other indices (Z, I, weight and et al). How can I get the these indices listed?
> library(rmeta)
> data(cochrane)
> cochrane
name ev.trt n.trt ev.ctrl n.ctrl
1 Auckland 36 532 60 538
2 Block 1 69 5
2009 Jun 29
1
Meta-Analysis: Metaplot Labels, SE, and Summary
Hello,
I'm ashamed to admit that I'm an R and meta-analysis neophyte just when my
colleagues and I are attempting to run R for that latter purpose. We would
like to construct a graph of the 95% confidence intervals of odds ratios
(inverse odds ratios, actually). We are using the metaplot() function in the
"rmeta" package. While we can construct a basic plot, we cannot configure
2008 Aug 25
5
How to do a meta-analysis plot
Dear R-list,
I'd like to do a meta-analysis plot similar to
install.packages('rmeta')
require(rmeta)
data(catheter)
a <- meta.MH(n.trt, n.ctrl, col.trt, col.ctrl, data=catheter,
names=Name, subset=c(13,6,5,3,7,12,4,11,1,8,10,2))
summary(a)
plot(a)
(see attached file) by using my own OR (Odds Ratio) and 95% Confidence
Interval data set, which looks like
2009 Feb 13
2
Meta-Analyisis on Correlations
Dear R-Community,
I'm currently trying to find a way to conduct a meta-analysis in R.
I would like to analyze data from mostly-cross-sectional survey-studies. The
effect sizes would be correlations.
The R packages "meta" and "rmeta" are, as far as I can see, set up for
analysis with effect sizes for differences (i.e. comparison of the
means/odds-ratios of experimental
2006 Aug 24
1
metaplot and meta.summaries
Hello,
After looking through the archive and documentation for quite some time, I'd be very happy
about some help with metaplot and meta.summaries.
metaplot:
---------
Can I change the label size? I've got 126 values and the intersection of the labels makes
it impossible to read them.
Why do I have to give sumse (Standard Error) and sumnn (Precision) of the summary
estimate? I can
2005 Oct 19
6
forrest plot
Hi,
can you tel me how can I make a Forrest Plot with R?
It is possible and easy or are there a more practical free software available?
Than you
Mic
[[alternative HTML version deleted]]
2009 Jun 04
4
Cochran’s Q statistic
Does anyone know which package include the computation of Cochran’s Q
statistic in R?
jlfmssm
[[alternative HTML version deleted]]
2009 Jul 28
5
Summarising Data for Forrest Plots
I tried to post this a few times last week and it seems to have got stuck somehow so I'm trying from a different email in the hope that works. If somehow this has appeared on the list 20 tiems and I never saw any of them I apologize ;-)
I'm basically an R-newbie. But I am VERY computer literate. But this has me stumped...
All the examples for using the rmeta package to create a
2002 Jan 10
2
question about survival datas with repeated mesurements
I have to study censured datas concernig the occurence of infection at the point of insertion of catheter in patients with renal disease. Catheter may be removed for ather reasons than infection, in this case, the observation is censored. Each has exactly 2 observations. The question are the pronostic factors of infection (the other variables are; age, sex, type of renal disease...). Could you
2008 May 28
2
rmeta package: metaplot or forestplot of meta-analysis under DSL (ramdon) model
Dear all,
I could not draw a forest plot for meta-analysis under ramdon models using the rmeta package. The rmeta has a default function for MH (fixed-effect) model. Has the rmeta package been updated for such a function? Or someone revised it and kept a private code?
I would appreciate it if you could provide some information on this question.
Thanks,
Andrew
This email is intended
2009 Mar 10
2
perform subgroup meta-analysis and create forest plot displaying subgroups
Hello,
I'm using the rmeta package to perform a meta analysis using summary statistics rather than raw data, and would like to analyze the effects in three different subgroups of my data. Furthermore, I'd like to plot this on one forest plot, with corresponding summary weighted averages of the effects displayed beneath each subgroup.
I am able to generate the subgroup analyses by simply
2004 Jan 06
1
help on rmeta
Hello
I'm trying to plot hazard risk values using the function metaplot with
the specifications:
> metaplot(HR,SE,W,labels=row.names(lc),xlab="Hazard
Ratio",ylab="Covariates",
logeffect=TRUE,logticks=FALSE,colors=meta.colors(box="black",lines="dark
gray",zero="darkgray"),cex=1.5,cex.lab=1.5,font=3)
However, in the plot the x axis
2012 Oct 15
1
library(rmeta)
Hello,
I have a data with following format:
Predictors n11 n12 n21 n22 Odds.Ratio log.ratio se.log.odds.
1 ProcOR respirato
2 ProcVaric vein
3 DiagCardiac anom
4 DiagAllergy
5 DiagOth skin dx
6 DiagGastritis
I want to plot odds ratio by command: forestplot in rmeta library, but I get the following error constantly.
Error in
2003 Nov 11
4
installing an add-on package
Dear all,
my apologies if I am posting a silly question - but I couldn't find any
helpful information on this elswhere.
In the R FAQ, version 1.8-1, there is a section "5.2 How can add-on
packages be installed?", but it only gives information for Unix users.
How can I install an add-on package under Windows? (Specifically, I have
downloaded the "rmeta" package from CRAN.)
2002 Dec 18
2
meta analysis
Dear R-lister,
is there any function for Meta Analysis in R? (like homogeneity an, risk
differences, relative riskm amd odds ratios?
Many thanks,
Edwin
2005 Oct 07
3
Converting PROC NLMIXED code to NLME
Hi,
I am trying to convert the following NLMIXED code to NLME, but am
running into problems concerning 'Singularity in backsolve'. As I am new
to R/S-Plus, I thought I may be missing something in the NLME code.
NLMIXED
***********
proc nlmixed data=kidney.kidney;
parms delta=0.03 gamma=1.1 b1=-0.003 b2=-1.2 b3=0.09 b4=0.35 b5=-1.43
varu=0.5;
eta=b1*age+b2*sex+b3*gn+b4*an+b5*pkn+u;
2007 Jun 21
3
meta-analysis in R
I would like to combine time-series data to test for correlations and
interactions using random and fixed effects meta-analysis.
So, I am looking for the right packages and documentation.
I know about meta and rmeta packages of R.
Are there any more? What are the diffrences in brief?
Can you please suggest some references that could be used as a guide for
meta-analysis in R (or S-plus)?
2012 Apr 04
1
meta-analysis, outcome = OR associated with a continuous independent variable
Hello everyone,
I want to do a meta-analysis of case-control studies on which an OR was
computed based on a continuous exposure. I have found several several
packages (metafor, rmeta, meta) but unless I misunderstood their main
functions, it seems to me that they focus on two-group comparisons (binary
independent variable), and do not have the option of using a continuous
independent variable.