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#
# Copyright 2007-2020 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.
library(OpenMx)
library(testthat)
#mxOption(NULL, "Default optimizer", "NPSOL")
# Constrain matrix 'K' to be equal to matrix 'limit'
model <- mxModel(model="con_test",
mxMatrix(type="Full", nrow=2, ncol=2, free=TRUE, name="K"),
mxMatrix(type="Full", nrow=2, ncol=2, free=FALSE, name="limit", values=1:4),
mxConstraint(K == limit, name = "Klimit_equality"),
mxAlgebra(min(K), name="minK"),
mxFitFunctionAlgebra("minK")
)
fit <- expect_warning(mxRun(model),
"no basis could be found for the nullspace of the constraint Jacobian")
omxCheckCloseEnough(fit$output$fit, 1, 1e-4)
omxCheckCloseEnough(c(fit$matrices$K$values), 1:4, 1e-3)
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