Thank you, Bernd, for looking into this. Yes, at the moment, the color of the summary estimate for models without moderators is hard-coded (as black). I didn't think people may want to change that. I guess I was wrong =)
A dirty solution for the moment is to add: addpoly(dfs, efac=6, row=-1, col="red", border="red", annotate=F, mlab="") after the call to forest(). You will get a warning message (since the border argument gets passed to the text() function inside addpoly() and that's not a par for text), but you can just ignore that. Best, -- Wolfgang Viechtbauer Department of Psychiatry and Neuropsychology School for Mental Health and Neuroscience Maastricht University, P.O. Box 616 6200 MD Maastricht, The Netherlands Tel: +31 (43) 368-5248 Fax: +31 (43) 368-8689 Web: http://www.wvbauer.com > -----Original Message----- > From: Bernd Weiss [mailto:bernd.we...@uni-koeln.de] > Sent: Wednesday, August 24, 2011 16:22 > To: Paola Tellaroli > Cc: w...@metafor-project.org; r-help@r-project.org > Subject: Re: [R] Change color in forest.rma (metafor) > > Am 24.08.2011 07:50, schrieb Paola Tellaroli: > > My script is the following: > > > > library(metafor) > > > > yi<-c(-0.1, 0.2, 0.3, 0.4) > > sei<-c(0.4, 0.2, 0.6, 0.1) > > vi<-sei^2 > > studi<-c("A", "B", "C", "D") > > eventi.c<-c(10, 5, 7, 6) > > n.c<-c(11, 34, 25, 20) > > eventi.a<-c(2, 7, 6, 5) > > n.a<-c(11, 35, 25, 15) > > dfs<-rma(yi, vi, method="DL") > > dfs > > > > windows(height=6, width=10, pointsize=10) > > windowsFonts(B=windowsFont("Bookman Old Style")) > > > > forest.rma(dfs, slab=studi, xlim=c(-15, 10), ilab=cbind(eventi.c, n.c, > > eventi.a, n.a), ilab.xpos=c(-9.5, -8, -6, -4.5), cex=1.2, at=c(-2, -1, > 0, 1, > > 2), family="B", xlab="Hazard Ratio (log scale)", mlab="Random Effects > > Model", efac=5, col="red", border="red") > > text(-10, -1.3, paste("Heterogeneity: I-squared=", > paste(paste(round(dfs$I2, > > 2), "%", sep=""), paste("p", round(dfs$QEp, 4), sep="="), sep=", "), > > sep=""), font=4, cex=1.2, family="B") > > > > op<-par(cex=1.2, font=2, family="B", oma=c(0.5, 0.5, 0.5, 0.5), > mar=c(0.5, > > 0.5, 0.5, 0.5)) > > text(x=c(-9.5, -8, -6, -4.5), 6, c("Events", "N", "Events", "N"), > cex=1.2 ) > > text(c(-8.7, -5.5, 8), 6.5, c("S", "A", "Log")) > > text(-15, 6, "Trials", pos=4) > > text(10, 6, "Hazard Ratio [95% CI]", pos=2) > > par(op) > > > > Even if I have specified "col="red", border="red"", color of squares and > > diamond rests black! Why? > > As far as I know, "col" and "border" do only affect the fitted values > ("diamonds"), i.e. the FEM/REM estimators (see ?forest.rma: "col: > character string specifying the name of a color to use for _the fitted_ > values ('"darkgray"' by default).") > > Furthermore, I had a quick look at the source code and it might be a > bug. If I replace in line 2770 the line > > cex * efac), col = "black", ...) > > with > > cex * efac), col = col, ...) > > you can at least specify your own colour. Changing the border color > seems a bit more tricky... > > However, Wolfgang Viechbauer (the package author) is always a very > responsive and helpful person and I suggest you better wait for his > answer. > > Bernd ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
