Hi Mike and all,
I'm a new learner of meta-analysis and just try to use metaSEM.
My dataset comprises 90 sets of 19*19 correlation matrix and every one contains some missing values. I'm trying to estimate a TSSEM model but encounter a problem in the first stage.
After loading all the 90 matrices, I use "is.pd" to check if they are positive definite, and the results are all "TRUE". When I use "tssem1(my.R, n, method="FEM"), it returns an error message saying that "Error in eigen(if (doDykstra) R else Y, symmetric = TRUE) : infinite or missing values in 'x'". Then I try to apply a random effect model by "tssem1(my.R, n, method="REM", RE.type="Diag", acov="weighted")", but no result has come out.
Is it due to the missing value, or any other issues that I have mistakenly ignored? how should I do to resolve the problem? Sincerely appreciate if you could help, thanks!
Best regards,
Eleanor