Re: [R] forrest plot

From: Robert Baer <>
Date: Fri 21 Oct 2005 - 02:35:40 EST

metaplot(mn=c(-0.28174,-0.71444,-0.12375,-0.12426,-0.30011,-0.45058,-0.07324 ),se=c(0.20766,0.42691,0.26366,0.30357,0.31819,0.28636,0.37758),xlab="HR and 95%CI",logeffect=T,xaxt="n",xlim=c(-1.7,1.7))

axis(side=1,at=c(0.2,0.3,0.6,1.0,1.4,2.0,3.0,5.4),labels=c(0.2,0.3,0.6,1.0,1 4,2.0,3.0,5.4))


Robert W. Baer, Ph.D.
Associate Professor
Department of Physiology
A. T. Still University of Health Science 800 W. Jefferson St.
Kirksville, MO 63501-1497 USA
----- Original Message -----
From: "Michela Ballardini" <> To: <>
Sent: Thursday, October 20, 2005 8:55 AM Subject: [R] forrest plot

I'm trying to plot hazard risk values using the function metaplot with  the specifications:

metaplot(mn=c(-0.28174,-0.71444,-0.12375,-0.12426,-0.30011,-0.45058,-0.07324 ),se=c(0.20766,0.42691,0.26366,0.30357,0.31819,0.28636,0.37758),xlab="HR and 95%CI",logeffect=T,xaxt="n")

axis(side=1,at=c(0,0.2,0.4,0.6,0.8,1.0,1.2,1.4,1.6,1.8,2.0),labels=c(0,0.2,0 4,0.6,0.8,1.0,1.2,1.4,1.6,1.8,2.0))

However, in the plot the x axis is on a log scale and tends to overextend the left end of the axis. How can I transform the x-scale on a linear scale with equidistant points?

Thank you very much for your attenction


Dr.ssa Michela Ballardini
Unità di Biostatistica e Sperimentazioni Cliniche c/o Osp. Morgagni-Pierantoni - Pad. Valsalva Via Forlanini, 34
47100 Forlì
Tel 0543-731836
Tel/Fax 0543-731612

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