<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear all,<div class=""><br class=""></div><div class="">May be a little bit a not expected question, I would like to produce a forestplot without the polygon (diamond) at the bottom.</div><div class="">The rationale for not presenting an overall-effect follows from non-statistical viewpoints.</div><div class="">By erasing it, the figure loses quality (see figure).</div><div class="">Is there a way to chose transparant or white for plotting the polygon (without losing the dashed ref-line).</div><div class="">Enclosed part of the codes.</div><div class=""><br class=""></div><div class=""><div class="">par(mar=c(4,4,1,2))</div><div class="">forest(res, slab = paste(dat44$Author, dat44$Year, sep = ", "), xlim = c(-20, 10), at=c(-3.0, -1.0, 0, 2.0), refline = 0, </div><div class="">rows=c(25:22, 18:16, 12:12, 9:5, 1:1),ylim=c(-1, 30), cex = 0.75, ilab=cbind(dat44$n1, dat44$n2), ilab.xpos= c(-9, -7))</div><div class=""><br class=""></div><div class="">op <- par(cex = 0.75, font = 2)</div><div class="">text(-20, 30, "Asthma symptom scores", pos = 4)</div><div class="">text(-20, 29, "Author; Year", pos = 4)</div><div class="">text (-10.5, 27, "Sample sizes",pos = 4)</div><div class="">text (c(-10, -8), 26, c("n1","n2"), font = 1, pos = 4)</div><div class="">text(10, 29, "SMD [95% CI]", pos = 2)</div><div class="">text(-20, c(26, 19, 13, 10,2), pos=4, c("Concurrent - One barrier", "Concurrent - Two barriers",</div><div class="">"Concurrent - Three barriers", "Concurrent - Other versions", "Air purification - Nocturnal"))</div><div class="">text(-20,-1, "RE Model", pos = 4, cex = 1.0, font = 1, col = "white")</div><div class=""><br class=""></div><div class="">res.1 <- rma(yi, vi, subset=(Strategy=="Concurrent_one"), data = dat44)</div><div class="">res.1</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">addpoly(res.1, cex = 1.0, font = 2, row = 21.0)</div><div class="">text(-20,21, "RE Model", pos = 4, cex = 1.0, font = 2, col = "white")</div><div class="">text(-20,21, " SMD for subgroup", pos = 4, cex = 1.0, font = 2)</div><div class=""><br class=""></div><div class="">par(op)</div></div><div class=""><br class=""></div><div class="">Looking forward for your reply.</div><div class=""><br class=""></div><div class="">Kind regards,</div><div class=""><br class=""></div><div class="">Frank van Boven</div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="CBE5347C-0581-4EF0-B564-C17AE896D976" src="cid:B37C7482-23A7-46A5-9603-64076B0A082D@arnhem.chello.nl" class=""></div></body></html>