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#
# Copyright 2007-2018 by the individuals mentioned in the source code history
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# A very big thank you to Tim Bates for writing this script.
require(OpenMx)
#options(error = utils::recover)
#options(warn = 2)
stdErr <- function(x) {
sqrt(var(x)/length(x))
}
set.seed(200);
known <- rnorm(1000,mean=0,sd=1)
known <- as.data.frame(known);
names(known)<-c("test")
stdErr(known$test) # 0.03145627
manifests <- names(known)
latents <- c()
factorModel <- mxModel("test SE", type="RAM",
manifestVars = manifests,
latentVars = latents,
mxPath(from=manifests, arrows=2, values=.1), # variance
mxPath(from="one", to=manifests),
mxData(known, type="raw")
)
factorModel <- mxOption(factorModel, "Standard Errors", "Fnord")
ignore <- omxCheckError(mxRun(factorModel),
"mxOption 'Standard Errors' must be either 'Yes' or 'No'");
factorModel <- mxOption(factorModel, "Standard Errors", "Yes")
fit <- mxRun(factorModel)
test.summary <- summary(mxRun(factorModel, suppressWarnings=TRUE))
omxCheckCloseEnough(test.summary$parameters$Std.Error[[2]], stdErr(known$test), 0.001)
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