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# http://xxm.times.uh.edu/learn-xxm/bivariate-cross-classified-model/
library(OpenMx)
options(width=120)
got <- suppressWarnings(try(load("models/nightly/data/faces.xxm.RData")))
if (is(got, "try-error")) load("data/faces.xxm.RData")
#head(faces.response)
faces.response$rater <- as.integer(faces.response$rater)
faces.response$target <- as.integer(faces.response$target)
# way too slow with OpenMx
faces.response <- subset(faces.response, response < 500)
any(table(faces.response$rater, faces.response$target) > 1) # Rampart can't help
raterModel <- mxModel(
"raterModel", type="RAM",
latentVars = c("SYM", "PA"),
mxData(data.frame(rater=unique(faces.response$rater)), "raw",
primaryKey="rater"),
mxPath(c("SYM", "PA"), arrows=2, connect="unique.pairs", values=c(1,0,1)))
targetModel <- mxModel(
"targetModel", type="RAM",
latentVars = c("SYM", "PA"),
mxData(data.frame(target=unique(faces.response$target)), "raw",
primaryKey="target"),
mxPath(c("SYM", "PA"), arrows=2, connect="unique.pairs", values=c(1,0,1)))
faces <- mxModel(
"faces", type="RAM", raterModel, targetModel,
manifestVars=c("SYM", "PA"),
mxData(faces.response, "raw"),
mxPath("one", c("SYM", "PA")),
mxPath(c("SYM", "PA"), arrows=2, connect="unique.pairs", values=c(1,0,1)),
mxPath(paste0('raterModel.', c("SYM", "PA")), c("SYM", "PA"),
free=FALSE, values=1, joinKey="rater"),
mxPath(paste0('targetModel.', c("SYM", "PA")), c("SYM", "PA"),
free=FALSE, values=1, joinKey="target"))
#faces <- mxRun(mxModel(faces, mxComputeOnce('fitfunction', 'fit')))
faces <- mxRun(faces)
summary(faces)
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