Dear Mike,
I am currently working on a metaSEM study. I've got some error, even I tried to use different methods (see below!). I also asked for a pattern of NA. I would like to ask if, in your opinion, the error messages are related to missing correlations? I have 379 lines, but only 1 or 2 correlations for some variables. Is there a way to continue this study? Maybe dropping some variables?
All the best,
Robert
sstage1fixed <- tssem1(Cov=cordat, n=data$N, method="FEM")
Error in if (!all(isPD)) warning(paste("Group ", (1:no.groups)[!isPD], :
missing value where TRUE/FALSE needed
stage1fixed <- tssem1(Cov=cordat, n=data$N, method="REM")
Error in solve.default(t(X) %% V_inv %% X) :
Lapack routine dgesv: system is exactly singular: U[1,1] = 0
> pattern.na(cordat,show.na=FALSE)
v1 v2 v3 v4 v5 v6
v1 1 10 2 8 19 7
v2 10 0 25 30 210 16
v3 2 25 3 7 68 7
v4 8 30 7 4 40 18
v5 19 210 68 40 3 17
v6 7 16 7 18 17 341