34.1 Markov View

The Markov View is used to change a number of elements in a Markov Model and is key to being able to edit them. Specific items of interest are:

  • Termination condition

  • State Rewards

  • Event Rewards

  • Tunnel states

The Markov View changes depending on which node you have selected. Using the Markov Cancer Final model we can show how the information on the Markov View change.

If you are not on a node within a Markov Model, a message will appear telling you to select a node within a Markov Model.

34.1.1  Markov View at a Markov Node

If you are on Markov Node, the Markov View will have four tabs with the following labels:

  • Markov Node

  • Health States

  • Transition Rewards (Traditional) or Event Rewards (WCC)

  • PartSA

Above the four tabs is a link to take you to the Markov/DES Tree Preferences settings at the top left.

The figures below show the information you can see when you have selected the Markov Node on each of the tabs. First the Markov Node tab.

Use the Markov Node tab to enter the model's Termination Condition.

Use the above tab to edit or review state rewards. Reviewing state rewards here provides the ability to view rewards for multiple states to ensure consistency. The toolbar also has a 'list' icon (next to the two yellow arrows) to let you select which Health States to show/hide.

Use the tab above to edit or review event rewards. You can use the dropdown menu (which says Sort by Health State at the moment) to list the transition/event rewards (listed as column headings) by either Health State or Jump State. Click the expand all toolbar icon to see transition rewards at every node in every transition subtree.

Use the tab above to associate Markov health states with a Survival Curve to generate Survival Curve Graphs as you would get from a PartSA model.

When at a Markov Node the tool bar for all the tabs have left and right yellow arrows. These give you the ability to move between different Markov Nodes in your model. The information displayed on the Markov View will then be relevant to the Markov Node currently highlighted.

If you are on a node which is a Health State within a Markov Model, details about the State Rewards for that node only will be shown.

If you are on a node which is part of a Transition subtree within a Markov Model, details about the Transition/Event Rewards for that node only will be shown.