Yes, I forgot to divide the weights by the sum of the weights (and multiply by 100) for weights.rma.mh(). This bug was pointed out to me a few weeks ago and this will be changed in the next version of the package.
Best, Wolfgang -- Wolfgang Viechtbauer, Ph.D., Statistician Department of Psychiatry and Psychology School for Mental Health and Neuroscience Faculty of Health, Medicine, and Life Sciences Maastricht University, P.O. Box 616 (VIJV1) 6200 MD Maastricht, The Netherlands +31 (43) 368-5248 | http://www.wvbauer.com ________________________________________ From: [email protected] [[email protected]] On Behalf Of Ignacio López De Ullibarri Galparsoro [[email protected]] Sent: Saturday, January 14, 2012 8:19 PM To: [email protected] Subject: [R] metafor: weights computation in Mantel-Haenszel method Dear R users, In metafor 1.6-0, the Mantel-Haenszel method is implemented by the rma.mh() function. I have observed that the sum of the weights computed by weights(x) doesn't add to 100% when x is an object of class rma.mh. The consequences of this fact can be clearly seen when a forest diagram is drawn with forest(x), which calls weights(x) (or more precisely, the method weights.rma.mh() defined in the package). Is this, as I suppose, a bug? [[alternative HTML version deleted]] ______________________________________________ [email protected] 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. ______________________________________________ [email protected] 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.
