compatibility

[gzhai]

data(twinData) dz = subset(twinData, zygosity == "DZFF" & cohort == "younger") mz = subset(twinData, zygosity == "MZFF" & cohort == "younger") m1 = umxACE(selDVs = c("wt"), sep = "", dzData = dz, mzData = mz) Error in umxACE(selDVs = c("wt"), sep = "", dzData = dz, mzData = mz) : could not find function "umxACE"

[mcneale]

library(umx) or require(umx) is needed before using any of its functions.

[gzhai]

yes, I know. It is actually a version compatibility issue, it works with OpenMx version 2.19.8 but not with 2.20.0. And there are some issues to install the old version of OpenMx from the CRAN into Rstudio cloud, but Rstudio package manager helps to install the old version and the problem solved!

[mcneale]

Ah, yes, we are working on some compatibility issues. BTW a bit more text with the initial post would have revealed the issue to be incompatibility rather than forgetting to invoke the library.

[tbates]

This is running fine for me under `umxVersion() 4.11.0, OpenMx 2.20.0, R 4.1.2

data(twinData)
dz = subset(twinData, zygosity == "DZFF" & cohort == "younger")
mz = subset(twinData, zygosity == "MZFF" & cohort == "younger")
m1 = umxACE(selDVs = c("wt"), sep = "", dzData = dz, mzData = mz)

Running ACE with 4 parameters

ACE -2 × log(Likelihood) = 12186.278

Table: Standardized parameter estimates from a 1-factor Cholesky ACE model. A: additive genetic; C: common environment; E: unique environment.

	a1	c1	e1
wt	0.922	.	0.388

Table: Means (from model$top$expMean)

	wt1	wt2
intercept	57.185	57.185