Thank you for your help!

On Mon, Dec 7, 2009 at 9:53 AM, Viechtbauer Wolfgang (STAT) <
Wolfgang.Viechtbauer@stat.unimaas.nl> wrote:

> If you just want a forest plot, then the forest() function.
>
> If you have the betas and corresponding variances, then you can create a
> forest plot with:
>
> forest(betas, varbetas)
>
> And yes, estimate +/- 1.96*sqrt(variance of estimate) would be an
> *approximate* 95% CI.
>
> Best,
>
> --
> Wolfgang Viechtbauer                        http://www.wvbauer.com/
> Department of Methodology and Statistics    Tel: +31 (0)43 388-2277
> School for Public Health and Primary Care   Office Location:
> Maastricht University, P.O. Box 616         Room B2.01 (second floor)
> 6200 MD Maastricht, The Netherlands         Debyeplein 1 (Randwyck)
>
>
>  ----Original Message----
> From: Xin Ge [mailto:xingemaillist@gmail.com]
> Sent: Sunday, December 06, 2009 00:40
> To: Viechtbauer Wolfgang (STAT)
> Cc: r-help@r-project.org
> Subject: Re: [R] Forest Plot
>
> > Thanks for your reply. Which function I should explore in "metafor"
> > package for this kind of plot.
> >
> > Also I have to do a forest plot for "regressions estimates" (betas)
> > and corresponding "sqrt(var)". I hope in this case there is no
> > difference between std. error and std. deviation? So, a 95%
> > confidence interval would be [estimate +/- 1.96*sqrt(variance of
> > estimate)]. Am I correct in saying this?
> >
> > Thanks again,
> > Xin
> >
> >
> > On Sat, Dec 5, 2009 at 6:21 PM, Viechtbauer Wolfgang (STAT)
> > <Wolfgang.Viechtbauer@stat.unimaas.nl> wrote:
> >
> > The figure that you linked to was produced with the "metafor"
> > package. It can also be used to produce a forest plot if you have
> > means and corresponding standard errors of the means. The standard
> > error of a mean is equal to SD / sqrt(n), so as long as you also know
> > the sample sizes (n), you can convert those standard deviations to
> > the standard errors.
> >
> > Best,
> >
> > --
> > Wolfgang Viechtbauer                        http://www.wvbauer.com/
> > Department of Methodology and Statistics    Tel: +31 (0)43 388-2277
> > School for Public Health and Primary Care   Office Location:
> > Maastricht University, P.O. Box 616         Room B2.01 (second floor)
> > 6200 MD Maastricht, The Netherlands         Debyeplein 1 (Randwyck)
> > ________________________________________
> > From: r-help-bounces@r-project.org [r-help-bounces@r-project.org] On
> > Behalf Of Xin Ge [xingemaillist@gmail.com]
> > Sent: Sunday, December 06, 2009 12:11 AM
> > To: r-help@r-project.org
> > Subject: [R] 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:
> >
> >
> http://bm2.genes.nig.ac.jp/RGM2/R_current/library/metafor/man/images/big_plot.rma.uni_001.png
> >
> > Thanks,
> > Xin
>
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