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Chunk #20 — A New Approach to Model Specification — MxModels and the Objects They Contain

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OpenMx: An Open Source Extended Structural Equation Modeling Framework.
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An MxAlgebra is an object that contains its name, a formula in R notation, and a result matrix of type double. The operands in the formula are named objects in the MxModel namespace that are either an MxMatrix or an MxAlgebra. Matrix operators include most of the common matrix operations such as addition, subtraction, matrix multiplication, dot product, Kronecker product, inverse, transpose, augmentation, exponentiation, log, and many others. A full list of operators can be found on the OpenMx website wiki.