Hello, I used the default parameters: - envelope: default is TRUE - level: the default is to take the value from the object (I do not understand this very well) - bonferroni : no - reps : default is 1000 - smooth: default is TRUE - bass : default is 0
I used no other arguments. 2012/1/13 Michael Dewey <i...@aghmed.fsnet.co.uk>: > At 15:53 11/01/2012, Ricc wrote: >> >> Hello, >> >> I once used the metawin software to perform a meta-analysis (see >> metawinsoft, Rosenberg et al.) and produced normal qqplot to test for >> a potential bias in the dataset. >> I now want to re-use the same dataset with the package metafor by W. >> Viechtbauer (great package btw). >> >> I run the qqnorm.rma.uni function. I use standardized effect sizes as >> in metawin. > > > I think it would help if you said which parameters you used to control the > envelope. Did you smooth it? Did you use the Bonferroni correction? > > > >> QQplot generated with metafor differs from the plot obtained with >> metawin: most of the datapoint fall outside the confidence envelope >> (using the same confidence level). I don't understand very well how >> the "pseudo confidence envelope" was created in metafor. Is it more >> conservative than that from metawin or created using the package >> envelope ? Unfortunately I do not have access to metawin's code so >> that I cannot compare implementations but the manual let me think that >> metawin print classical confidence interval... >> >> Thanks for input ! >> Ricc >> >> More precisions: >> R version 2.13.1 (2011-07-08) >> Platform: x86_64-pc-linux-gnu (64-bit) >> metafor_1.6-0 > > > Michael Dewey > i...@aghmed.fsnet.co.uk > http://www.aghmed.fsnet.co.uk/home.html > ______________________________________________ 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.
