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Fenton and Neil's book: "Risk Assessment with Bayesian Networks"

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You are here: Home » Products » Known Issues

Known Issues (last updated 6 May 2016)

(see also FAQ)

  1. If you delete any items from the Risk Map, the clipboard will be cleared.
  2. When installing the latest version of AgenaRisk the AgenaRisk program group, start menu item  and desktop shortcut are no longer automatically created (this is due to a change in the third party installer software that is beyond our control). To run AgenaRisk you therefore have to select the file agenrisk.exe that you will find in the  installation directory (this is  typically located here: C:\Program Files\AgenaRisk). You should, for convenience, simply create your own desktop shortcut to this file. 
  3. In Ubuntu and on Macintosh the user interface may show additional scroll bars. These are benign.
  4. On Macintosh double-clicking an AgenaRisk model file opens AgenaRisk but not the model you selected. You will need to select the Open Model option.
  5. If you are in the Risk Table view and you switch between the Risk Objects in the Risk Explorer, occasionally the Risk Table appears empty. To show it, you need to click on the Risk Map tab and then click on the Risk Table tab.
  6. Although it may be tempting to insert carriage returns when writing long expressions in the expression editor, these are not accepted by the parser and so will be removed once the model is saved. Hence it is strongly recommended that you avoid using carriage returns and other special characters in the expression editor.
  7. If you have more than one scenario in your model then marking a scenario as inactive means it does not appear in the risk map or risk table view. However, inactive scenarios are still calculated when you press the  'run calculation' button. This means the calculation time will increase accordingly. So you need to be careful managing scenarios for large models.
  8. If you have set your Model Graph Properties (in Model Properties) to display 6 or more decimal places then the probability graphs may display values that are slightly incorrect. For example, a probability value of 60% may be displayed as 60.000002% instead of 60.000000%. Please note that this is purely a graph display error; the correct values are stored in the model as can be seen by right clicking on the graph and selecting 'display summary statistics' and then expanding the state values.
  9. In old legacy models changing the options in: “Model Properties > Model Graph Properties” Does not have any effect (i.e. the original options that were chosen cannot be changed). Similarly, if you import model B into a new model A then you will not be able to change model B’s properties. So the default properties for model A will not be applied to B.
  10. In old legacy models the ‘space taken for statistics’ in the risk graph (when displayed in its own window) was set to 0. To see the statistics you must drag the vertical scrollbar which is aligned at the right edge of the window.
  11. When entering soft evidence in the risk table you should not check any of the boxes associated with an answer as these are used only to enter an observation (checking any box will remove the soft evidence you have entered for any other answer. You need to enter a value in the text box and then press ‘return’. However, for the ‘last answer’ once you enter the value in the text box you have to click on the text label for the entry to be accepted.
  12. The text style toolbars (including font and size) display the current 'default settings' for node text (meaning whatever the user last selected in the menu) and NOT the settings for the selected node. So, if the current default happens to be 12pt and you select a node which is 10pt but which you want to be 12pt then when you select it, even though the menu says 12pt you have to select 12pt in the menu to make the change to this node.
  13. Changing text style back to regular from bold or italic does not work
  14. Renaming a node by changing only a capital letter to lower case or vice versa will not work. For example if you rename a node labelled “quality” to “Quality” or vice versa it will not work. The work around is to first change the name to a different temporary name like “quality1”.
  15. Sometimes (especially when using older legacy models) a model can become corrupted so that a previously working model starts to behave in unexpected ways and even fails to calculate. For symptoms and workaround of corrupted models see here.
  16. On the Macintosh version some copy and paste functionality from external programs does not work. For example, copy and pasting a table from Excel into an NPT does not work (although it does work from AgenaRisk into Excel).
  17. If you are in Risk Table view when you run a calculation there can be a delay in refreshing the risk table.
  18. See also Frequently Asked Questions.