[R-meta] Error message in ML meta-analysis
Apologies for the delay in replying--as it happens, the problem was a fairly elementary one... I forgot to read the data into the appropriate format. Oops! Thanks for your help with this, Wolfgang. G.J. -----Original Message----- From: Viechtbauer, Wolfgang (SP) [mailto:wolfgang.viechtbauer at maastrichtuniversity.nl] Sent: 06 June 2018 10:09 To: G.J. Melendez-Torres <Melendez-TorresG at cardiff.ac.uk>; r-sig-meta-analysis at r-project.org Subject: RE: Error message in ML meta-analysis Dear G.J., Based on what you show, I cannot diagnose the problem. What does class(microtrialmerge) show? How about class(microtrialmerge$smd_var)? Even better, can you create a small fully reproducible example that creates this error? Best, Wolfgang -----Original Message----- From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces at r-project.org] On Behalf Of G.J. Melendez-Torres Sent: Wednesday, 06 June, 2018 1:47 To: r-sig-meta-analysis at r-project.org Subject: [R-meta] Error message in ML meta-analysis Hi everyone-after going back and running a multilevel meta-analysis that worked a few months ago, I got this error message:
timeout.obs<-rma.mv(smd_rev, smd_var, random= ~esid | code, data=microtrialmerge)
Error in if (is.vector(V) || nrow(V) == 1L || ncol(V) == 1L) V <- diag(as.vector(V), : missing value where TRUE/FALSE needed This is rather vexing because a) these exact same data and same command have run before, and b) I have checked and rechecked and cannot find any reason why this might be the case. The yi and vi vectors are both k x 1 with no missing values, and I can't seem to find a logical in the metafor guidance that would require specification for this basic meta-analysis Any assistance would be gratefully received... G.J. G.J. Melendez-Torres DPhil RN MFPH Senior Lecturer | Uwch-ddarlithydd DECIPHer, School of Social Sciences | DECIPHer, Ysgol Gwyddorau Cymdeithasol Cardiff University | Prifysgol Caerdydd 1-3 Museum Place | 1-3 Plas yr Amgueddfa Cardiff | Caerdydd CF10 3BD Email | Ebost: Melendez-TorresG at cardiff.ac.uk<mailto:Melendez-TorresG at cardiff.ac.uk> Tel. | Ff n.: +44 (0) 29208 79106 Follow DECIPHer on Twitter | Dilynwch DECIPHer ar Twitter: @DECIPHerCentre<https://twitter.com/DECIPHerCentre> Follow me on Twitter | Dilynwch fi ar Twitter: @gjmelendez