Revisions allow you to track differences between multiple versions of your content, and revert back to older versions.
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# Create an empy model, and place it in an object. model <- mxModel() # Create a model named 'firstdraft' with one matrixmodel <- mxModel('firstdraft', mxMatrix('Full', nrow = 3, ncol = 3, name = "A"))
# Add other matrices to model 'firstdraft', and rename that model 'finaldraft'model <- mxModel(model, name= "finaldraft", mxMatrix('Symm', nrow = 3, name = "S"), mxMatrix('Iden', nrow = 3, name = "F"))
# Add data to the model from an existing data frame in object 'data'data <- data.frame() model <- mxModel(model, mxData(data, type='raw'))
# View the matrix named "A" in MxModel object 'model'model[["A"]]
# View the data associated with MxModel object 'model'model@data
Remove an object from a model
You can remove paths, matrices, algebras, and other objects from a model using mxModel, with the to-be-modified model as its first parameter, and then a comma delimited list of the names of the objects you want to remove, setting remove to TRUE
e.g.aModel <- mxModel("aModel", mxMatrix(name="myMatrix", type="Full",nrow=8,ncol=5)) aMinus <- mxModel(aModel, "myMatrix", remove=TRUE)