Machine Learning - Diagnostic - Model Simulator

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This tool creates a new page containing a simulator for your predictive model. This is sometimes referred to as a "typing tool". The simulator allows you to enter new values for the Predictor variables in your model and to see what the predicted value is for that combination, based on your model. The simulator works with Regression models and Machine Learning models.

When the Outcome variable in your model is numeric, the simulator will provide one output showing the predicted value for your selection. When your Outcome variable is categorical, the simulator will create two outputs, with the first showing the predicted category, and the second showing the probabilities of the possible outcomes for your selection.

Usage

To create a simulator:

1. Create a predictive model using one of the options in Anyting > Advanced Analysis > Regression or Anything > Advanced Analysis > Machine Learning.
2. Select the model output on your page.
3. Select DIAGNOSTICS > Create Simulator on the right of your screen.
4. Format and arrange the labels, controls, and outputs from the simulator to your preferred appearance.

Technical Details

If you have categorical Predictor variables in your model that have empty categories you will not be able to simulate values for those categories. You can remove these ahead of time (before creating the simulator) by creating table of the relevant Variable Set, selecting the label for the empty category, and pressing Delete, or you can simply remove those labels from the simulator once it has been added to the page, by selecting the combo box, going in to Control > Item list on the right and deleting the label for the empty category.

includeWeb('QScript Functions for Model Simulator');

createPredictiveModelSimulator();

See also

• QScript for more general information about QScripts.
• QScript Examples Library for other examples.
• Online JavaScript Libraries for the libraries of functions that can be used when writing QScripts.
• QScript Reference for information about how QScript can manipulate the different elements of a project.
• JavaScript for information about the JavaScript programming language.
• Table JavaScript and Plot JavaScript for tools for using JavaScript to modify the appearance of tables and charts.