Hello,
I am new to using umx, so I apologize for asking what is perhaps a very simple question. I am trying to run a bivariate ACE model using binary variables (they are structured as ordered factors). When I run the model, I receive the warning message copied below alongside model output:
In matrix(labels, nrow, ncol, byrow = byrow) :
data length [3] is not a sub-multiple or multiple of the number of rows [2]
I saw a few threads describing this error, but they were all in the context of OpenMx code for which nrow and ncol were explicitly specified in the model. Might you be able to advise what the source of this error is and how to remedy, if necessary? Is the output of the bivariate model unreliable given the accompanying warning message?
Here is the code I am using (adapted from Boulder script):
selDVs = c("var1", "var2")
m1 = umxACE(selDVs = selDVs, dzData = dzData,
mzData = mzData, sep = "_T", tryHard = c("ordinal"))
Thank you very much for your time!