In this exercise we will generate sample data from a Bayesian network, via the Bayes Server User Interface.

Prerequisites

1 - Bayes Server

Bayes Server must be installed, before starting this walkthrough.

Note

An evaluation version can be downloaded from the Bayes Server website.

Open the model

  • Launch Bayes Server, and on the Start page click the Bayesian network entitled 'Walkthrough 2 - Mixture Model' in the Sample networks pane.

    Tip

    If the Start page is not set to display on start up, or has been closed, click the Start page button, on the View tab, General group.

Generating sample data

  1. Click the Data Sampling button, located on the Data tab of the main ribbon toolbar. This will launch the Data Sampling window.

  2. Change the text in the Case count text box to 1000. This will generate 1000 cases.

  3. Click the Start button. The window should look something like this:

    Note

    Because sampling is random, your output will not look exactly the same.

    Exercise Data Sampling

Visualizing the sampled data

  1. Click the Charts tab, located on the ribbon toolbar of the Data Sampling window.

  2. Change the drop down boxes to the following settings.

    X:X
    Y:Y
    Color:Cluster

    The ribbon toolbar should look like this:

    Exercise Data Sampling Chart Settings
  3. Click the Plot button. The window should look like this:

    Note

    Because sampling is random, your output will not look exactly the same.

    Exercise Data Sampling Chart