Dear Hugh
1 - Your post is unreadable because you posted in HTML so it will be
very difficult for anyone to see your V
2 - there is a separate mailing list for meta-analysis in R where you
may get more helpful responses as it is monitored by authors of most of
the main packages. Please see
https://stat.ethz.ch/mailman/listinfo/r-sig-meta-analysis// and remember
to register first.
Michael
On 24/10/2018 22:35, Crean, Hugh wrote:
This may be a very simple fix, but I am struggling to reproduce Becker's (1988)
imputation of control group effect sizes for single group trials. For some reason that I
cannot figure out, I am getting an "All list elements in 'V' must be square
matrices". Below is my V matrix, which I believe is square:
Study1
Study2
Study3
Study4
Study5
Study6
Study7
Study8
0.118
0
0
0
0
0.010465
0.010465
0.010465
0
0.121
0
0
0
0.010465
0.010465
0.010465
0
0
0.404
0
0
0.010465
0.010465
0.010465
0
0
0
0.146
0
0.010465
0.010465
0.010465
0
0
0
0
0.09
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.104465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.085465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.069465
I get the error running as a multivariate rma. If I run as a simple rma, I get
a non-positive sampling variances error message (but the correlations are all
at least between 0 and 1).
Any help is greatly appreciated.
Hugh
Hugh F. Crean, Ph.D.
Assistant Professor of Clinical Nursing
2W.156 Helen Wood Hall
School of Nursing
University of Rochester
601 Elmwood Avenue
Rochester, New York 14620
(585) 276-5575
[[alternative HTML version deleted]]
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--
Michael
http://www.dewey.myzen.co.uk/home.html
______________________________________________
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