There is no inbuilt functionality to get this information on a per-matrix basis. As Rich indicated you can easily get this information for the model as a whole.
Whilst I am not a scripting expert, I wrote this simple script which should allow you to find out basic information about a selected matrix:
def allMatrices = matrices*.name // Scan the model and put all the matrix names in a list
def String chooseMatrixMessage = “Choose a Matrix:”
def chosenMatrix = ask(chooseMatrixMessage,[“Matrix”:allMatrices]) // Let the user select a matrix name from the list
selectedMatrix = matrices[chosenMatrix[“Matrix”]] // Select the matrix using the name that the user selected
def numCategories = selectedMatrix.categories*.name.size().toString()
def numCells = selectedMatrix.values.size().toString()
def numFormulas = selectedMatrix.formulae.size.toString()
alert(“Details for “+ selectedMatrix.name.toString() + “nn” + “Categories: “+ numCategories + “n” + “Cells: ” + numCells + “n” + “Formulas: ” + numFormulas)
Not that I am aware of. The only thing that speaks to the size of a Quantrix model of course is its file footprint (filesize). Model Statistics under Help –>Model Statistics gives some insight into how big your model is, but there is nothing built in that I am aware of that indicates “Matrix” specific size.
I have made multiple requests that there be some sort of properties added to each matrix where one can see (from a right-click properties selection in the model browser ) matrix size, calculation speed, formulas, data source, etc for each respective matrix…perhaps it will be in the next release.